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Isuzu Dmax/MUX (Pre DPF) Upgrades

Just Autos offer premium ECU tuning and performance upgrade packages
for the popular Isuzu Dmax-Mux (Pre-DPF)
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Just Autos Diesel Performance

Enhance Your Mux's Performance

The Isuzu Dmax is known for its flagship engine, the 4JJ1, which is a 3.0 common rail engine, and is capable of producing high amounts of torque and power with just minor tuning and upgrades. Just Autos has a wide range of performance upgrade packages to suit most applications, helping you release the untapped power and performance within your engine!

Just Autos are ECU tuning specialists, and we can provide tailored remaps that tap into your engine’s true power. Our ECU tuning services, combined with any of our range of upgrade packages – or upgrade piecemeal – can bring about massive gains in power and torque, delivering a quality driving experience, and power outputs that exceed expectations.

A custom ECU remap on the 3.0 Isuzu platform can achieve significant gains in torque while still retaining all factory components and, on average, should reflect around 50-60% gains in torque. Even more torque can be achieved by upgrading to a custom package, which could include upgraded turbos, Injectors, intercoolers, and much more.

Factory Figures

300nm & 125hp at the wheels.

Remap Figures

500nm & 185hp at the wheels (on average based on Package 1).

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How We Can Improve Your Isuzu Dmax's Performance

Greater Torque & Power

Performance tuning removes the limitations set by the manufacturer, and allows for better torque and power outputs from your engine.

Increased Fuel Economy

Custom tuning or replacing parts with performance parts can greatly reduce your fuel consumption and improve your mileage.

Performance Parts

We have a large variety of part upgrade choices, for a selection of different vehicle makes and models. Get in touch for more info or visit our workshop.

Isuzu Dmax/mux Upgrade Packages

With packages ranging from mild to wild, we have all aspects of the Dmax covered – offering custom ECU remaps and exhausts, to full packages including turbo upgrades, larger injectors, intakes and air boxes. Our goal is to help you achieve as much torque and power as your engine can safely handle.

Isuzu Dmax - Mux

Package 1

Download Information Sheet

Package 1 – Upgrades for the Isuzu Dmax can vary depending on exact model and the transmission type fitted to the vehicle, However, on average, we will see around a 50% gain in torque at the wheels.

The Dmax models with an automatic transmission will benefit from having an upgraded valve body to assist with shifting between gears, given that it’s known that the A350 & A750 transmissions can be indecisive when changing gears.

Isuzu Dmax - Mux

Package 2

Download Information Sheet

Package 2 – This package is designed for the tourer in mind, and includes a Grunter turbo and 30% injectors. Low down torque is what this package is designed for!

Usual figures can push around 220hp and 550nm.

Isuzu Dmax - Mux

Package 3

Download Information Sheet

Package 3 is similar to Package 2, but is ideal for a Toyota owner really looking to put the pedal to the metal – a driver that doesn’t just want their engines to perform, they want them to exceed expectation!

The package usually includes a stage 2 or 3 G Turbo, depending on transmission fitted to the vehicle, and provides power output figures of, on average, around 250hp and 700-800nm.

Isuzu Dmax Performance Specialists

OFFICIAL Australian Distributors of the HKS F-CON iD piggyback ECU

The HKS FCON-iD is a piggyback computer that is hard wired into the vehicle’s factory ECU. This enables you to have more control over the vehicle’s factory base tune setting. Just Autos’ custom-tune your vehicle on our in-house Dyno Dynamics Dynamometer by increasing fuel injection duration, common rail pressure and boost pressure. The factory ECU boost limit is also raised by the HKS F-CON iD piggyback computer.

The HKS F-CON iD allows us to live-tune your vehicle on the dyno. It is also a very useful tool for diagnosing vehicle faults as there is a full data log feature for injection duration, common rail pressure, boost pressure, air flow and throttle position.

We can compliment your HKS F-CON iD with a custom ECU remap to disable the EGR and associated DTC’s. The HKS F-CON iD will suit the majority of modern 4 cylinder common rail diesel engines, including Ford, Mazda, ISUZU, Toyota and Mitsubishi. Just Autos has several authorised resellers across Australia that can supply, install and tune a HKS-FCON iD piggyback ECU for your vehicle.

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Turbo Upgrades

The 3.0 engine can achieve  substantial gains in torque and power when upgrading with the right supporting mods.

G Turbo has a range of turbos suited for every application and desired outcome.

Exhaust Upgrades

When tuning the 3.0 engine in factory form, the exhaust system fitted to the vehicle can be utilised while carrying out an ECU remap.

To see if your 3.0 needs an exhaust fitted please give our team a ring to discuss your needs.

Injector Upgrades

30% Injectors can be custom-built, in-house to achieve the fuelling required when upgrading the vehicle to your desired outcome.

Most models will require 30% injectors when upgrading the vehicle factory fitted turbo.

Intercooler Upgrades

Just Autos has a range of intercooler upgrades for the 3.0 engine. From factory the Isuzu Dmax is already fitted with a front-mounted intercooler, which works well in a standard form.

We recommend replacing the factory fitted intercooler when upgrading injectors or turbo, but also when towing heavy loads to reduce unnecessarily high intake temperatures.

Transmission Upgrades

The A750 transmission in the Isuzu Dmax is known to be quite an indecisive gearbox and hesitates between gear changes.

Just Autos has a range up upgraded valve bodies which can increase internal pressure inside the gearbox which will not only help with shifting between gears, but can also reduce slip between gear changes to improve reliability.

Clutch Upgrades

The clutch fitted from factory on the 4JJ1 can support over 200hp which, from a factory standpoint, is quite a heavy-duty clutch.

We have a range of upgrades from NPC when your looking to upgrading your Dmax.

What Our Customers Have to Say

Diesel Performance Experts

Changing the Way You Drive

Here at Just Autos Diesel Performance, we have developed a full range of Isuzu performance upgrade services that will transform the way you drive. We tailor our services to you and your vehicle, and provide the best solutions for your requirements.

Our technicians at Just Autos will provide a whole range of benefits including increased power, improved drivability and sharper throttle response. With our expert technicians and state of the art 2WD and 4WD dynos, you can trust that our service is of the highest quality.

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