







Purchase online and visit APR headquarters in Irlam, Greater Manchester for professional installation.
Locate an authorised APR dealer near you for professional installation.
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APR's ECU Upgrades are the best dollar-per-horsepower modification one can make to improve engine performance. The upgrades dramatically increase horsepower and torque, making for an exceptionally quicker and more exciting vehicle. This is made possible through APR's optimization of the factory engine management system to take full advantage of the engine's capabilities, without needing any end user adjustment. The ECU Upgrades are available with various features and supported octane levels and each stage is compatible with most typical bolt-on modifications. The software is installed to the vehicle's factory ECU through the OBD-II port, resulting in a clean and headache-free install. Furthermore, for those looking for tuning with a limited powertrain warranty, APR Plus has you covered!
The APR Stage 1 ECU Upgrade is the first step towards tuning your engine. It produces up to 454-501 HP and 439-523 FT-LBS of torque with gains as high as +102-155 HP and +111-195 FT-LBS of torque at the wheels. Optionally manual transmission customers can request a lower torque file to help promote longevity on the factory clutch. Sport mode will have similar peak power, but torque will be capped similar to normal mode. APR Stage 1 is available for 91 AKI, 93 AKI, 100 AKI, 104 AKI, and E60-E85 f
The APR Stage 3 ECU Upgrade is the next step towards tuning your engine. It produces up to 520-615 HP and 524-594 FT-LBS of torque with gains as high as +152-228 HP and +196-266 FT-LBS of torque at the wheels, and with additional cooling it produces up to 565-648 HP and 548-594 FT-LBS of torque with gains as high as +185-262 HP and +220-266 FT-LBS of torque at the wheels. Use this tune with the Porsche Carrera GTS turbochargers. Optionally manual transmission customers can request a lower torque
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