ECU Remapping is when your vehicle’s computer files are modified and updated, and the original factory files are replaced. In simple terms, it’s like updating a software program on your computer. To find out more, click here.
ECU Remapping / Diesel Tuning
What is the difference between an ECU Re-map and a Chip?
The difference between an ECU remap and a Chip is substantial. A Chip is a small external module which works in conjunction with the engine’s computer. It intercepts small amounts of information from the engine’s computer and changes this information before it gets to where it’s going. It basically tricks the computer.
An ECU remap is “re-programming” of the engine’s computer, which is done by uploading a new file. There is no module or unit fitted. This is a much more advanced way to increase power and torque. Re-mapping gives much more control and adjust-ability over a chip.
Which is better? Chip or Re-map?
ECU remapping is much more advanced than a chip. Re-mapping offers a huge amount of adjustability over a chip, and it is much safer and more reliable.
Re-mapping will outperform a chip, producing more power and torque, better fuel economy and improved driveability.
Chips are old technology and very limited to what they can do, they still do have a place but only if an ECU remap is not possible.
Is ECU Re-mapping safe?
YES, ECU remapping is safe. Our ECU re-mapping process enhances and optimises the power of the engine within safe limits, not beyond them. Every car is tested on our dyno to ensure all the adjustments are correct, the tune is safe and performs as expected.
Is there a warranty?
Yes. For vehicles less than 12 months old, we offer a 3-year 60,000km warranty. For vehicles more than 12 months old, we offer a 1-year 20,000km warranty. If your vehicle returned to the dealer, and for any reason the ECU software was updated and the “tuned” file was overridden, we will “re-flash” your tuned file back to your ECU at no charge. Both your original and tuned file are kept securely on file. (Conditions apply).
* Warranty is not transferable.
Does an ECU remap void my new car warranty?
Under consumer law, the only way your new car warranty can be refused by the manufacturer or dealership is by proving via evidence that the ECU remap was the cause of the issue. Rest assured, problems caused by ECU remaps are extremely rare, in fact, we have never seen this happen. For complete customer satisfaction and quality control, we offer the following warranty for your ECU remap;
For vehicles less than 12 months old, we offer a 3-year 60,000km warranty. For vehicles more than 12 months old, we offer a 1-year 20,000km warranty.
* Warranty is not transferable.
How much more power can I expect?
Every car is different, and therefore the results will be different. A power increase between 25 to 35% is very common, however we do see some vehicles with huge increases between 40-60%. All our tunes are kept with-in the manufacturer’s safety parameters, and this will have an impact on how much power can be achieved.
Is ECU remapping all the same?
No, not all ECU remapping or “tuning” is the same!
You might be surprised to find that there can be a HUGE difference in ECU remapping.
Click here for more information (link to blog post about cheap tunes)
What happens if the dealer updates my computer?
When a dealer up-dates a vehicle’s computer, it doesn’t necessarily mean this will affect your tune. However, if your vehicle did return to the dealer, and for any reason the ECU software was updated and the “tuned” file was overridden, we can re-flash your tuned file back at NO charge. (conditions apply)
Your stock file and your new tuned file are both stored on our database.
What is a Dyno Graph?
A Dyno graph or Dyno chart is a two-dimensional representation of an engine’s power and torque over the engine’s speed range. To put simply, it’s how we read a vehicle’s power and torque at a given speed.
What is dyno tuning?
Answer: Dyno tuning is the process of connecting your vehicle to a rolling road machine called a dynamometer while a specialist tuner remaps your ECU in real time. The dyno measures actual power, torque, air-fuel ratios, boost pressure, and exhaust gas temperatures under full load. Unlike generic “flash tunes” downloaded from the internet, dyno tuning creates a custom calibration specifically for your individual vehicle, the fuel quality you use, and your local climate conditions.
Why this matters on the Gold Coast: Our hot, humid subtropical climate means your engine works harder than in cooler states. A dyno tune performed locally on the Gold Coast accounts for our specific conditions. A generic tune from Melbourne or Sydney will not perform the same way here.
At Diesel Performance Tune: We use a brand new, state-of-the-art 4WD dyno. We show you before and after graphs so you can see the real results. The dyno doesn’t lie.
Book a dyno tune on the Gold Coast
How much does it cost to tune a car?
Answer: In Australia, dyno tuning a diesel 4WD typically costs between eight hundred and one thousand eight hundred dollars. The final price depends on three main factors: your ECU type, how many hours your vehicle needs on the dyno, and what modifications you have installed.
A simple remap for a standard diesel ute like a Toyota HiLux or Ford Ranger costs between eight hundred and one thousand two hundred dollars and takes two to three hours. A full custom tune for a vehicle with modifications like an exhaust, intercooler, or bigger turbo costs between one thousand eight hundred and three thousand dollars and takes four to six hours. European vehicles like BMW, Mercedes, and Audi require a bench unlock of the ECU, which adds three hundred to five hundred dollars to the total cost.
Warning: If you see a “dyno tune” advertised for three hundred and fifty dollars, the shop is likely uploading a generic file without actually tuning your vehicle on a dyno. Real dyno time costs between one hundred and fifty and two hundred and fifty dollars per hour just for the machine rental.
At Diesel Performance Tune: Our brand new 4WD dyno is faster and more accurate than older machines, which saves you money on dyno time. The dyno doesn’t lie.
Get a quote for your specific vehicle – Gold Coast
What is the difference between a chip tune and an ECU remap?
Answer: A chip tune, also called a tuning box, is a physical device that plugs in between your engine sensors and your ECU. It works by tricking the ECU into adding more fuel. The chip tune does not change your factory software and can be removed before dealer services. It costs between two hundred and one thousand two hundred dollars.
An ECU remap, also called a reflash or dyno tune, is a permanent software change that rewrites your engine computer’s fuel maps, boost maps, and timing maps. It is performed by a professional tuner, ideally on a dynamometer. An ECU remap costs between eight hundred and one thousand eight hundred dollars.
In terms of real power gain, a chip tune typically delivers ten to twenty-five percent of the power that is claimed in the marketing. An ECU remap delivers twenty to forty percent verified power gain that we prove on the dyno. In terms of safety, a chip tune is low because it cannot monitor your engine’s vital signs. An ECU remap is high because the tuner sees everything including air-fuel ratios, exhaust gas temperatures, and knock in real time.
Our recommendation: If your vehicle is under warranty and you need to remove the tune before dealer visits, a chip tune is your only option. For everyone else, an ECU remap is better for power, safety, and drivability. The dyno doesn’t lie.
Read our full chip tune vs ECU remap guide
How much horsepower does a dyno tune add?
Answer: A dyno tune typically adds between five and fifteen percent power gain for a naturally aspirated diesel engine. For a turbo diesel engine, which is what most modern 4WDs have, a dyno tune adds between twenty and forty percent power gain.
Real examples from our Gold Coast workshop using our brand new 4WD dyno show that a Toyota HiLux with the 2.8 litre engine goes from one hundred and thirty kilowatts to approximately one hundred and seventy kilowatts after a custom dyno tune. That is an increase of forty kilowatts. A Ford Ranger with the 3.2 litre engine goes from one hundred and forty seven kilowatts to approximately one hundred and eighty five kilowatts after a custom dyno tune. That is an increase of thirty eight kilowatts.
Important note: These gains require a custom dyno tune performed on a real dynamometer. Generic “canned tunes” downloaded from the internet will not deliver these results. On our brand new 4WD dyno, we prove every gain with before and after graphs. The dyno doesn’t lie.
See real dyno results from Gold Coast customers
Is dyno tuning bad for your engine?
Answer: No. Proper dyno tuning performed by an experienced professional is actually safer than driving without a tune. A good tuner reduces knock and lean conditions, sets safe boost limits and torque limits, and monitors exhaust gas temperatures in real time. If anything looks dangerous, the tuner stops the pull immediately.
What is dangerous is bad tuning from inexperienced tuners or cheap “canned tunes” that are not customized for your specific vehicle. Adding too much timing or too much boost without monitoring the engine’s response is what melts pistons and blows turbos.
At Diesel Performance Tune: Our brand new 4WD dyno includes real time cylinder pressure monitoring. We stop the pull the instant we see anything unsafe. Safety is always our first priority. The dyno doesn’t lie.
Book a safe dyno tune on the Gold Coast
Do I need a dyno tune after installing modifications?
Answer: Yes, especially after certain modifications. An exhaust system, particularly a turbo back exhaust, changes exhaust flow which affects your air-fuel ratios and exhaust gas temperatures. You need a dyno tune after installing an exhaust to optimize the tune for the new flow.
A larger intercooler changes air density and intake air temperatures, so you need a dyno tune to adjust the fuel maps accordingly. A bigger turbo is a major modification that completely changes your boost curve, so a dyno tune is mandatory for safety.
A catch can does not require a dyno tune because it only protects your engine and does not change airflow or fuel flow. A secondary fuel filter also does not require a tune, but we recommend running your vehicle on the dyno after installation to confirm there is no fuel flow restriction.
The golden rule: Anything that changes airflow or fuel flow needs a dyno tune. The dyno doesn’t lie.
Book a post-modification dyno tune – Gold Coast
Will a dyno tune void my warranty?
Answer: Yes. An ECU remap or dyno tune is detectable by dealer diagnostic equipment and will void your engine warranty. The dealer can see the flash counter on your ECU, which tells them how many times the software has been rewritten.
If your vehicle is under warranty and you want more response, you have three options. Option one is to install a chip tune or tuning box, which is removable before dealer services and carries lower risk. Option two is to wait until your warranty expires and then get a proper dyno tune. Option three is to accept the risk and tune anyway, understanding that any engine failure will not be covered by warranty.
Our honest advice: If your vehicle is brand new with a full factory warranty, consider a removable chip tune first. When your warranty expires, come to us for a proper dyno tune on our brand new 4WD dyno. The dyno doesn’t lie.
How often should I dyno tune my diesel?
Answer: You should have your diesel checked on a dyno every two years or every fifty thousand kilometres, whichever comes first. This is a health check to ensure your tune is still safe and your engine is performing as expected.
You also need a dyno tune after any major modification including an exhaust system, a turbo upgrade, an intercooler upgrade, or fuel system changes. If you notice a loss of power, increased smoke, or higher fuel consumption, you should book a dyno health check immediately.
At Diesel Performance Tune: We offer health check dyno runs on our brand new 4WD dyno to verify that your tune is still safe. The dyno doesn’t lie.
Book a dyno health check – Gold Coast
What is the best diesel tune for towing?
Answer: The best diesel tune for towing is a custom dyno tune that focuses on torque at low RPM rather than peak horsepower at high RPM.
A proper towing tune needs three things. First, more torque at low RPM between one thousand five hundred and two thousand five hundred RPM where your engine spends most of its time when towing. Second, safe exhaust gas temperature limits below seven hundred degrees Celsius sustained to prevent turbo and piston damage. Third, transmission shift adjustments if you have an automatic to ensure the gearbox holds gears appropriately when climbing hills.
At Diesel Performance Tune: We specialize in towing tunes on our brand new 4WD dyno. We monitor exhaust gas temperatures in real time and set safe limits for your specific towing application. Whether you are towing a boat to the Spit, a caravan to Cairns, or a horse float to the hinterland, we tune your diesel to handle the load safely. The dyno doesn’t lie.
Book a towing-specific dyno tune – Gold Coast
Can you dyno tune a Toyota HiLux?
Answer: Yes. The Toyota HiLux with the 2.8 litre 1GD-FTV engine is one of the most common vehicles we tune on the Gold Coast. We have tuned dozens of HiLuxs on our brand new 4WD dyno.
Real results from our dyno show a stock HiLux produces approximately one hundred and thirty kilowatts and four hundred and fifty Newton metres of torque. After our custom dyno tune, the same HiLux produces approximately one hundred and seventy kilowatts and five hundred and fifty or more Newton metres of torque. Turbo lag is reduced significantly, with boost coming on as low as one thousand five hundred RPM compared to the factory setting of two thousand two hundred RPM.
The HiLux owner’s feedback we hear most often: “It feels like a completely different car.”
Book your HiLux dyno tune – Gold Coast
Can you dyno tune a Ford Ranger?
Answer: Yes. The Ford Ranger with the 3.2 litre five cylinder engine and the 2.0 litre BiTurbo engine are both very common at our Gold Coast workshop. We have extensive experience tuning both engines on our brand new 4WD dyno.
For the 3.2 litre Ranger, a stock vehicle produces approximately one hundred and forty seven kilowatts. After our custom dyno tune, the same Ranger produces approximately one hundred and ninety kilowatts. Torque increases from four hundred and seventy Newton metres to over six hundred Newton metres. Turbo lag is reduced dramatically.
For the 2.0 litre BiTurbo Ranger, gains are similar in percentage terms but the engine responds slightly differently due to the twin turbo setup. We tune each vehicle individually on our dyno.
Book your Ranger dyno tune – Gold Coast
Can you dyno tune an Isuzu D-Max?
Answer: Yes. The Isuzu D-Max with the 3.0 litre 4JJ3 engine and the 1.9 litre engine are both supported on our brand new 4WD dyno. The D-Max is popular on the Gold Coast for its reliability, and a dyno tune transforms the driving experience.
A stock 3.0 litre D-Max produces approximately one hundred and forty kilowatts. After our custom dyno tune, the same D-Max produces approximately one hundred and eighty kilowatts. The biggest improvement D-Max owners notice is the reduction in turbo lag and the improved throttle response, especially when towing.
Book your D-Max dyno tune – Gold Coast
What is dyno tuning?
Dyno tuning is the process of optimizing a vehicle’s engine using a dynamometer to measure horsepower, torque, and air-fuel ratios under load. It allows precise ECU adjustments, improving performance, fuel efficiency, and engine safety through real-time data testing.
How much does it cost to tune a car?
The cost to tune a car in Australia typically ranges from $500 to $1,500 for standard vehicles. Performance or heavily modified vehicles can cost $1,500 to $3,000 or more depending on engine complexity, tuning time, and whether custom dyno tuning is required.
What are dyno tune prices?
Dyno tune prices vary based on vehicle type, modifications, and tuning requirements. Most diesel and petrol vehicles cost between $800 and $1,500, while high-performance builds may exceed $2,000 due to extended dyno time and advanced ECU calibration.
What is dyno car tuning?
Dyno car tuning involves running a vehicle on a dynamometer while adjusting the ECU to optimize power, torque, and efficiency. It provides accurate real-time data, making it safer and more effective than generic tuning methods.
How do I find a dyno tune near me?
To find a reliable dyno tune near you, look for workshops with modern dyno equipment, experienced technicians, and proven results. Choosing a tuner that offers custom ECU remapping and real-time testing ensures better performance and engine safety.
What is a catch can?
A catch can is a device installed in the engine’s crankcase ventilation system to capture oil vapour and contaminants before they enter the intake. It helps keep the engine clean, reduces carbon buildup, and improves long-term performance.
What does a catch can do on a diesel?
A catch can prevents oil mist from entering the intake system in diesel engines. This reduces carbon deposits, improves combustion efficiency, and helps extend engine life, especially in turbo diesel vehicles.
What is the purpose of a catch can?
The purpose of a catch can is to separate oil vapour and contaminants from the air before it re-enters the engine. This helps maintain a cleaner intake system, improves efficiency, and reduces engine wear over time.
How to reduce turbo lag in diesel engines?
Turbo lag in diesel engines can be reduced by installing a diesel throttle controller, improving airflow, upgrading the exhaust system, and performing ECU remapping. These upgrades help the turbo spool faster and improve throttle response.
What is a diesel throttle controller?
A diesel throttle controller is an electronic device that improves throttle response by reducing delay between accelerator input and engine reaction. It makes the vehicle feel more responsive without increasing engine power.
What is a secondary fuel filter in diesel engines?
A secondary fuel filter provides additional filtration to remove contaminants from diesel fuel before it reaches the engine. It helps protect injectors, improve fuel quality, and increase engine reliability in harsh driving conditions.
Why is diesel fuel filtration important?
Diesel fuel filtration is important to remove dirt, water, and contaminants that can damage fuel injectors and engine components. Proper filtration improves performance, efficiency, and long-term engine durability.
What is a DPF back exhaust?
A DPF back exhaust system replaces the exhaust components after the diesel particulate filter. It improves airflow and sound without removing emissions equipment, making it a common upgrade for better performance while staying compliant.
What is a turbo back exhaust system?
A turbo back exhaust system replaces the entire exhaust system from the turbocharger to the tailpipe. It improves airflow, reduces back pressure, and increases performance, especially in turbo diesel vehicles.
What is the difference between DPF back and turbo back exhaust?
A DPF back exhaust keeps the diesel particulate filter intact, while a turbo back exhaust replaces the entire system including components before the DPF. Turbo back systems offer better performance but may have legal restrictions depending on regulations.
GVM FAQs
Who is a manufacturer?
The term manufacturer has a clear definition in the Australian Design Rules (ADRs), in clause 3 of Vehicle Standard (Australian Design Rule – Definitions and Vehicle Categories) 2005.
The ADRs say that a manufacturer of a vehicle is the person who accepts responsibility for compliance with the ADRs in relation to that vehicle and is issued a compliance plate approval certificate for that vehicle.
The ADRs do not differentiate between OEMs and SSMs (Second Stage of Manufacture).
Based on the definition in the ADRs, Lovells is considered a manufacturer of a vehicle if it accepts responsibility for compliance with the ADRs in relation to that vehicle and is issued a compliance plate approval certificate for that vehicle. Lovells accepts this responsibility as part of its GCM upgrade packages.
What is the position regarding post-registration upgrades?
When a manufacturer modifies a vehicle that has already been registered, this modification is governed by the various State and Territory authorities and their individual Type Approvals or Modification Codes. Put simply, these upgrades are governed by State and Territory law.
Whether a particular type of modification is available post-registration, therefore depends on the position in the State or Territory in question. Some of the States and Territories have recently changed their position in relation to post-registration upgrades.
GCM upgrades post-registration
Lovells understands that the current position in relation to GCM upgrades in each State and Territory is as follows:
NSW, SA and VIC recognise a revised GCM specified by a SSM if endorsed by the inspecting engineering signatory. The signatory must be an endorsed engineer who has access to our Evidence Packages. Endorsed engineers’ contact details are available upon request.
Tasmania recognises a revised GCM specified by a SSM.
Queensland no longer recognises a revised GCM above the GCM nominated by the OEM. However, on 22 January 2020, Queensland TMR released a statement to the industry that “TMR is exploring options for the issue of a new code that deals with GCM increases. TMR is working closely with Industry on this task, and in particular the Australian Automotive Aftermarket Association (AAAA). Whilst TMR’s priority remains on road safety and national consistency, it is optimistic that a technically sound and separate code-based solution for GCM re-rating can be developed”.
WA, ACT and NT no longer recognises a revised GCM above the GCM nominated by the OEM if the vehicle is modified after first registration.
How does Lovells ensure that any GCM it nominates is accurate?
Not every SSM can or does nominate a revised GCM.
Lovells does nominate revised GCM capacity figures as a SSM.
Lovells is committed to going above and beyond and believes it is the only SSM that has a full complement of test data and evidence packages to satisfy the December 2019 released GCM and Towing Upgrade Technical Working Group test regime.
This comprehensive new test regime is endorsed by the AAAA, exceeds OEM requirements, and includes the following tests:
- ADR35/05 Testing- Dynamic Braking performance, handbrake performance and gradient starts.
- ADR88 ESC Performance Testing- Sine with Dwell.
- Uprated Axle Assembly Testing- FEA (Finite Element Analysis), lab testing, material testing and CAD modelling.
- SAE J2807 GCM Verification- Driveline and Power train thermal testing.
- SAE J2807 Dynamic Stability testing as a combination. Utilising Lovells test trailer built to SAE standards. This is the only SAE test trailer in the country at present and features include, adjustable draw bar/axle position, adjustable center of gravity, adjustable moment of inertia, load cells on all components, yaw sensors and data acquisition systems, adjustable aerodynamics and frontal area, adjustable weight distribution with rail slides and interchangeable suspension types.
- SAE J266 Understeer testing as a combination.
- VSB6 GCM verification calculations- Start ability and Gradeability.
- Combination Vehicle and Trailer Braking test based on ADR35.
- Towing Upgrade Chassis testing and ADR-62/02 testing.
- Towing Upgrade Hitch receiver load testing and durability/cyclic frequency evidence by an independent DIRDC endorsed Test Facility.
- ADR62/02 Evidence- Mechanical Connections between vehicles.
- Laboratory Report ADR-62/02 – 1200lb Weight Distribution System.
- Dynamic Strength Test Report – Lovells 5T Haul Ace All Terrain Hitch.
- Laboratory Report ADR-62/02 – Static Test AS4177.1 -1200lb Weight Distribution System.
- Laboratory Report ADR-62/02 – Static Strength Test.
- Component Registration 47868 Lovells 5T Haul Ace All Terrain Hitch.
- Component Registration 48275 Lovells 1200lb Weight Distribution System.
- Component Registration 48274 Lovells Tow Bar/Drop Shank.
Has there been a recent change to the law regulating pre-registration GCM upgrades?
There has been no recent change to the law regulating pre-registration vehicle upgrades.
Lovells understands that the longstanding position for many years has been that while the Federal Department does not assess, endorse, or approve GCM upgrades, it equally does not restrict or prohibit GCM upgrades. Lovells understands this longstanding position has not changed.
Importantly, this means that:
Vehicles that Lovells has previously modified are legal in all States and Territories.
Lovells is permitted to plate vehicles with gross vehicle mass (GVM) upgrades and towing capacity upgrades under the approved RVD (as stated in Lovells SSM approvals and as noted on current RVDs).
Lovells is permitted to modify GVM/GCM/towing capacity or variants of these modifications in all States and Territories prior to first registration.
Important information regarding towing & operating at maximum GCM
Due to increased drivetrain operating temperatures at maximum GCM, Lovells suggest engine, transmission/gearbox, transfer case and differential (s) oil changes to be carried out at half the Original Equipment Intervals. Eg. half the interval of the OEM oil changes, say from 24months/200,000km to 12months/100,000km. Failure to accommodate this may result in premature failure of drive train components which may affect warranty. Constant operation of the vehicle at maximum GVM, Towing Capacity and GCM will reduce the Duty Cycle and life of components, and this must be taken into consideration by the vehicle operator.
Is the GVM and BTC upgrade legal in all States and Territories?
Yes. Rest assured, The Federal Dept of Transport have the final say on all Second Stage Manufacturers Approvals and we cover everything and more as required by the ADRs.
Warranty Terms
Coil Springs: 5 year/unlimited km from date of fitment
Leaf Springs: 5 year/unlimited km from date of fitment
Shock Absorbers: 3 year/70.000km whichever occurs first
Platinum Series Shock Absorbers: 4 year/100.000km whichever occurs first
Suspension Components: 2 year/40,000km whichever occurs first
Towing Components: 2 year/40,000km whichever occurs first
Warranty – OE components
Once the Lovells SSM compliance plate is fitted to the vehicle, then Lovells Springs bare full responsibility and will warrant any failure directly associated with the GVM and GCM increase. Please see excerpts from Lovells undertaking in all Overview Documents.
‘IS THE ORIGINAL EQUIPMENT WARRANTY AFFECTED WHEN FITTING A LOVELLS GVM UPGRADE?
As a SSM approval holder, Lovells takes full responsibility for the changes the revised GVM, GCM and the Rated Towing Capacity may have on the duty cycle of the vehicle systems and sub-systems (for example, Brakes, Automatic Transmission, Tow Coupling etc) and any follow-on effect on warranty claims by vehicle owners.
‘Vehicle warranty is not affected when a GVM or BTC Upgrade (Rated Towing Capacity Upgrade) is fitted. Our testing and analysis procedures are stringent and undertaken by an accredited Automotive Engineering Consultants to ensure original equipment components are not compromised. Modifications and load limits are within theoretical service/safety factors to ensure the integrity and longevity of OE (Original Equipment) parts associated with increasing the vehicles load carrying capabilities. As Lovells are a Second Stage Manufacturer, it is our responsibility to document these tests and thus take responsibility for the GVM, GCM and Rated Towing Capacity Upgrades (BTC Upgrades) and their compliance.
Therefore, should an OE (Original Equipment) component fail and be directly attributed/caused by the vehicle carrying loads to a maximum GVM, GCM and Rated Towing Capacity or part failure associated with the GVM, GCM and Rated Towing Capacity Upgrade modification, Lovells will take full responsibility to cover warranty of any failed component after written proof and testing by an independent body has been lodged and confirmed the failure is due to the vehicles increased GVM, GCM and Rated Towing Capacity.
Warranty excludes any component or system which has been identified by the OEM as having a potential failure or problem.
For example:
Toyota Landcruiser LC70 variants:
Toyota has identified an ongoing issue with potential front differential oil leaks on Toyota Landcruiser LC70 variants, (Toyota Technical News Flash TNF-79/19), Lovells SSM warranty excludes any gazetted failure of OEM components. This exclusion includes parts and labour.
Based on Lovells differential testing, CAD modelling and FEA analysis, there is no satisfactory correlation to the potential premature failure of the differential center
securing bolts loosening/breaking as a direct result of Lovells suspension upgrades
Ford Ranger PX3 2.0 litre bi-turbo:
Based on Ford Customer Service Bulletin released on 4/3/20, Lovells will not assume any warranty or responsibility for transmission failure on the Ford Ranger 2.0 litre engine variant.
What is a GVM upgrade?
Answer: GVM stands for Gross Vehicle Mass. GVM is the maximum total weight your vehicle is legally allowed to weigh when fully loaded, including the vehicle itself, all passengers, all fuel, all cargo, all accessories like bullbars and canopies, and the tow ball download weight from any trailer you are towing.
A GVM upgrade is a certified increase to this maximum legal weight limit. A GVM upgrade requires upgraded suspension components including stronger springs and shocks, an engineering certificate from a qualified engineer, and a new compliance plate fitted to your vehicle showing the new higher GVM.
The amount of increase depends on the kit you choose. Most GVM upgrades add between two hundred and four hundred kilograms of additional legal carrying capacity. Premium upgrades like BTC or Better Than Coil upgrades can add between four hundred and six hundred kilograms.
The cost of a GVM upgrade ranges from two thousand five hundred dollars for a basic heavy duty suspension upgrade to fifteen thousand dollars for a full BTC coil conversion. All of these prices include the engineering certificate and compliance plate, which are mandatory for the upgrade to be legal.
Why GVM matters: In Queensland, exceeding your vehicle’s GVM is illegal. You can receive fines, defect notices, and your insurance can be voided if you are involved in an accident while overloaded. More importantly, an overloaded vehicle handles poorly, brakes worse, and wears out suspension and tyres much faster.
Full GVM upgrade guide for Gold Coast 4WD owners
Do I need a GVM upgrade for my Isuzu D-Max?
Answer: If you have added a bullbar, a canopy, drawers, a fridge, and you tow a trailer or caravan, you almost certainly need a GVM upgrade for your Isuzu D-Max.
Here are the numbers. The stock GVM of an Isuzu D-Max is three thousand one hundred and fifty kilograms. A typical D-Max with a bullbar, canopy, drawers, fridge, tow bar, and fuel weighs approximately three thousand three hundred and fifty to three thousand four hundred and fifty kilograms. That is an overload of two hundred to three hundred kilograms before you even add passengers or camping gear.
The most popular GVM upgrade for the D-Max is from Lovells, which adds three hundred and twenty kilograms bringing the new GVM to three thousand four hundred and seventy kilograms. ARB offers a GVM upgrade adding two hundred and eighty kilograms bringing the new GVM to three thousand four hundred and thirty kilograms. Superior Engineering offers a four hundred kilogram increase bringing the new GVM to three thousand five hundred and fifty kilograms.
The Gold Coast reality: Most D-Maxs driving around the Gold Coast with aftermarket accessories are illegally overloaded. A GVM upgrade is not an expensive optional extra. It is a legal requirement once you add a canopy, drawers, and a bullbar.
Isuzu D-Max GVM upgrade complete guide
What is the Prado 150 towing capacity?
Answer: The Toyota Prado 150 has a braked towing capacity of three thousand kilograms. This means it can legally tow a trailer or caravan weighing up to three thousand kilograms if the trailer has its own brakes. The unbraked towing capacity is seven hundred and fifty kilograms, meaning it can tow a small trailer without brakes up to that weight. The maximum tow ball download is two hundred and fifty kilograms.
However, there is a very important GVM problem with the Prado 150 when towing. The tow ball download weight of two hundred and fifty kilograms counts directly against your vehicle’s GVM. The stock GVM of a Prado 150 is two thousand nine hundred and ninety kilograms. With a two hundred and fifty kilogram tow ball download, you have only two hundred and seventy kilograms remaining for the vehicle itself, passengers, fuel, and all other cargo.
A typical Prado 150 with two adults, two children, a full fuel tank, and a bullbar already weighs close to its GVM before you attach a caravan. Add the two hundred and fifty kilogram tow ball download, and you are significantly over GVM.
The solution: If you plan to tow a caravan weighing close to three thousand kilograms with your Prado 150, you need a GVM upgrade before you hit the road.
Prado 150 GVM and towing guide
What is the 200 Series LandCruiser towing capacity?
Answer: The Toyota 200 Series LandCruiser with the 4.5 litre V8 diesel engine has a braked towing capacity of three thousand five hundred kilograms. The unbraked towing capacity is seven hundred and fifty kilograms. The maximum tow ball download is three hundred and fifty kilograms.
The GVM problem with the 200 Series is even more significant than with the Prado. The stock GVM of a 200 Series is three thousand three hundred and fifty kilograms. The kerb weight is approximately two thousand seven hundred and forty kilograms. This leaves only six hundred and ten kilograms of available payload.
When you attach a caravan with a three hundred and fifty kilogram tow ball download, that six hundred and ten kilograms of payload drops to just two hundred and sixty kilograms remaining. That two hundred and sixty kilograms must cover your passengers, your fuel, your bullbar, your drawers, your fridge, and all your camping gear. Most 200 Series owners exceed their GVM the moment they start towing.
The most popular GVM upgrades for the 200 Series are from Lovells which increases GVM to three thousand eight hundred kilograms adding four hundred and fifty kilograms of capacity, from ARB which increases GVM to three thousand seven hundred and fifty kilograms adding four hundred kilograms, and from Superior Engineering which increases GVM to three thousand eight hundred and eighty kilograms adding five hundred and thirty kilograms.
200 Series LandCruiser GVM and towing guide
What is a BTC upgrade?
Answer: BTC stands for Better Than Coil. A BTC upgrade is a premium suspension system that either converts leaf spring rear ends to coil springs or upgrades existing coil systems with significantly heavier duty components.
A full BTC upgrade includes a complete coil conversion for vehicles that originally came with leaf springs. It includes heavy duty coil springs front and rear. It includes remote reservoir shock absorbers for better heat dissipation during heavy towing. It includes full engineering certification and a new compliance plate. It typically increases GVM by four hundred to six hundred kilograms.
The cost of a BTC upgrade is between eight thousand and fifteen thousand dollars depending on the vehicle and the specific components chosen. The installation takes several days to one week.
A BTC upgrade is best for serious tourers who travel remote Australia fully loaded, caravanners who tow heavy vans long distances, and tradies who actually need the full GVM capacity every day. For most Gold Coast 4WD owners who do occasional camping and towing, a standard GVM upgrade with heavy duty springs and shocks is sufficient and much more affordable.
BTC upgrade explained in detail
DPF back vs turbo back exhaust – what's the difference?
Answer: The difference between a DPF back exhaust and a turbo back exhaust is where the exhaust system starts.
A DPF back exhaust replaces everything from the Diesel Particulate Filter to the rear of the vehicle. The factory DPF remains in place. The pipes from the DPF to the rear are replaced with larger diameter, higher flowing pipes. A DPF back exhaust costs between five hundred and one thousand two hundred dollars. It adds approximately five to ten horsepower without a tune, or ten to twenty horsepower with a dyno tune. It reduces turbo lag by approximately ten to twenty percent. A DPF back exhaust is fully legal in Queensland because the DPF remains in place and emissions are unchanged.
A turbo back exhaust replaces everything from the turbocharger outlet to the rear of the vehicle. This includes the downpipe from the turbo to the DPF area, the mid pipe, and the rear section. The DPF must be addressed in one of two ways. Option one is to install a high flow DPF, which is expensive but legal. Option two is to delete the DPF entirely, which is illegal in Queensland and carries fines over two thousand five hundred dollars plus defect notices and voided insurance.
A turbo back exhaust with a high flow DPF costs between one thousand five hundred and three thousand five hundred dollars. It adds approximately fifteen to thirty horsepower without a tune, or thirty to fifty horsepower with a dyno tune. It reduces turbo lag by approximately forty to sixty percent.
Which is better? A turbo back exhaust makes significantly more power and reduces lag much more effectively. However, it costs much more and you must use a high flow DPF to stay legal. A DPF back exhaust is legal, cheaper, and provides milder but still worthwhile gains. On our brand new 4WD dyno, a turbo back exhaust combined with a dyno tune makes approximately twice the power of a DPF back exhaust combined with a dyno tune. The dyno doesn’t lie.
Full DPF back vs turbo back exhaust guide
Is a 3 inch turbo back exhaust worth it?
Answer: A three inch turbo back exhaust is worth the investment, but only if you also get a dyno tune. Without a dyno tune, you are leaving most of the potential gain on the table.
Here are the real results we have measured on our brand new 4WD dyno. A three inch turbo back exhaust installed on a diesel 4WD without a dyno tune adds approximately fifteen to thirty horsepower. The same exhaust installed with a custom dyno tune adds approximately thirty to fifty horsepower. The exhaust alone gives you a small gain. The exhaust plus a tune gives you a big gain.
For a Toyota HiLux with the 2.8 litre engine, a three inch turbo back exhaust plus our custom dyno tune takes power from one hundred and thirty kilowatts to approximately one hundred and seventy kilowatts. For a Ford Ranger with the 3.2 litre engine, the same combination takes power from one hundred and forty seven kilowatts to approximately one hundred and ninety kilowatts.
The three inch diameter is ideal for diesel 4WDs with engine sizes between 2.5 litres and 3.2 litres, which includes the HiLux, Ranger, D-Max, Triton, and most other popular vehicles on the Gold Coast.
Our recommendation: If you are going to install a three inch turbo back exhaust, book your dyno tune at the same time. We will run your vehicle on our brand new 4WD dyno before the exhaust, after the exhaust, and after the tune. You will see the difference at every step. The dyno doesn’t lie.
Book your exhaust plus dyno tune package – Gold Coast
Is an aftermarket exhaust legal on the Gold Coast?
Answer: Whether an aftermarket exhaust is legal on the Gold Coast depends entirely on which type of exhaust you choose.
A DPF back exhaust is fully legal in Queensland. The factory DPF remains in place, so emissions are unchanged. The noise level must stay within the legal limit of ninety decibels for diesel engines. Most DPF back exhausts with a muffler will pass this test.
A turbo back exhaust with a high flow DPF is also legal, but it is expensive. The high flow DPF must meet Australian Design Rule emissions standards. Not all high flow DPFs on the market are legal, so you must buy from a reputable brand.
A turbo back exhaust with a DPF delete is illegal in Queensland. If you are caught, you face fines exceeding two thousand five hundred dollars, a defect notice that requires the vehicle to be towed, and your insurance will be voided if you are involved in an accident. Do not delete your DPF.
A straight pipe exhaust with no muffler is also illegal regardless of the DPF status. The noise limit of ninety decibels for diesels is strictly enforced on the Gold Coast.
Our advice: Keep your DPF. Buy a DPF back exhaust from a reputable brand, or spend the extra money on a high flow DPF turbo back exhaust. Do not delete your DPF. The fines and insurance risks are not worth it.
Does an exhaust need a dyno tune?
Answer: An exhaust does not strictly require a dyno tune, but you are wasting most of the exhaust’s potential if you do not get one.
Here is what happens when you install an exhaust without a tune. Your engine flows more air, but your ECU is still running the factory fuel maps. You will see a small power gain, typically ten to twenty horsepower, simply from reduced back pressure. However, your air-fuel ratios may not be optimal, and you are not taking advantage of the exhaust’s full flow potential.
Here is what happens when you install an exhaust with a custom dyno tune. Your tuner rewrites the fuel maps to take full advantage of the increased airflow. You will see a large power gain, typically thirty to fifty horsepower. Your air-fuel ratios will be optimized for power and safety. Your exhaust gas temperatures will be monitored and kept within safe limits.
The pattern is clear: Exhaust alone equals small gain. Exhaust plus dyno tune equals big gain.
At Diesel Performance Tune, We recommend doing both at the same time. Install your exhaust, then bring your vehicle to our brand new 4WD dyno for a custom tune. We will run the vehicle before and after so you can see exactly what the exhaust added and what the tune added. The dyno doesn’t lie.
Book your post-exhaust dyno tune – Gold Coast
What is a GVM upgrade?
A GVM upgrade increases the maximum legal weight your vehicle can carry, including passengers, fuel, and cargo. It is commonly used for 4WD vehicles to improve load capacity and ensure safe and compliant operation.
How much does a GVM upgrade cost?
A GVM upgrade in Australia typically costs between $3,000 and $6,000 depending on the vehicle, suspension components, and certification requirements. Prices vary based on brand, installation complexity, and engineering approval.
Is a GVM upgrade worth it?
A GVM upgrade is worth it for 4WD owners who carry heavy loads or tow regularly. It improves safety, prevents overloading, and ensures compliance with legal weight limits, making it a valuable investment.
Is a GVM upgrade legal in Australia?
Yes, GVM upgrades are legal in Australia when properly engineered and certified. They must comply with state regulations and be approved by an authorized engineer to ensure roadworthiness and insurance validity.
What is an Isuzu D-Max GVM upgrade?
An Isuzu D-Max GVM upgrade increases the vehicle’s load capacity through upgraded suspension and engineering certification. It is commonly used for towing, work applications, and off-road travel.
What is Prado 150 towing capacity?
The Toyota Prado 150 has a towing capacity of up to 3,000 kg depending on the model. A GVM upgrade helps maintain safety and compliance when towing heavy loads.
What is 200 Series LandCruiser towing capacity?
The 200 Series LandCruiser can tow up to 3,500 kg. A GVM upgrade is often recommended to handle additional load safely, especially for long-distance touring.
What is a BTC upgrade?
A BTC upgrade, or brake and towing capacity upgrade, improves a vehicle’s ability to tow heavier loads safely. It enhances braking performance and stability, often used alongside GVM upgrades.
