Increased Horsepower

More power across the whole rev range providing on average an extra 25% more BHP.

Increased Torque

Transform the performance of your diesel engine with up to 30% more torque, no more struggling to get up hills and pull heavy loads.

Increased Economy

Increasing the power in the lower rev range means you can change up a gear sooner and stay in high gears for longer. This can lead to fuel economy gains of up to 15%.

Gets rid of those annoying flat acceleration spots in your Toyota Auris D-4D and reduces the effect of diesel turbo lag for a more enjoyable and smoother drive, with longer performance power band.

Gain improved urban MPG by tuning the diesel engine's natural high torque output, allowing use of higher gears at much lower revs than as standard for better overall fuel economy.

Tuning the diesel engine’s performance in the low to medium rev range also allows better power delivery for easier towing of caravans and/or trailers.

The chip tuning unit does not overwrite or alter any settings in the ECU so your Toyota Auris D-4D returns to factory standard once removed, as a result, and unlike a remap, the effect of the diesel tuning chip cannot be wiped or detected by Toyota main dealer service intervals.

Fully adjustable with 16 power maps, our chip tuning unit comes pre-set to boost your Toyota Auris D-4D's performance & economy whilst allowing you to optimise the chip tuning unit's setting to suit your driving style.

Our easy to follow instruction guide takes you through the process of how identify the fuel rail and correct sensor to fit the chip tuning unit to.

Compatible with both manual or automatic gearboxes in Toyota Auris D-4D diesel models.

After fitting your Toyota Auris D-4D engine remains fully compliant with vehicle emission test standards, so suitable for Toyota Auris D-4D engines fitted with diesel particulate filters (DPF/FAP).

We don’t cut corners on build quality, each of our chip tuning units is manufactured and tested to stringent ISO 9001 quality assurance standards.

The safe alternative to the minefield of remapping, our DIY install diesel chip tuning unit provides excellent performance increases as well as impressive fuel economy gains for the careful driver.

Whether you're after better performance or more fuel economy, it's the ultimate accessory for your Toyota Auris D-4D.