APR ECU Upgrade - 3.0T TFSI - B8.5 Q5 - Simos 8.5

APR is pleased to present the ultimate engine control unit (ECU) upgrade for the 3.0 TFSI!

APR’s ECU Upgrades are the best dollar-per-horsepower modification one can make to the 3.0T engine. 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 software loads to the factory ECU through the OBD-II port, resulting in a clean and headache-free install.

APR ECU Upgrade Stages

APR’s ECU Upgrades are available in multiple stages, supporting various octanes both with or without any hardware modifications. Specific software is available for use with APR's Supercharger Drive and Crank Pulley upgrades, as well as APR's Ultracharger Throttle Body upgrade, while all stages are fully compatible with an upgraded APR Intake System, exhaust systems, APR Supercharger Cooling System or other minor bolt on modifications.

APR Plus ECU Upgrade with a Limited Powertrain Warranty

The APR Plus ECU Upgrade is the first step towards making more power, and it includes our limited powertrain warranty. This simple upgrade requies no engine hardware modifications, and produces 433 HP with 364 FT-LBS of torque. Gains as high as 147 HP and 119 FT-LBS of torque are available throughout the power band, making the vehicle exceptionally quicker in all scenarios.

The APR Plus ECU Upgrade matches the performance of our Stage 1 ECU Upgrade (91 octane version). To get even more power, you can add any of our other Stage 1 compatible products and still be covered under the APR Plus warranty! To learn more about APR Plus, please visit the APR Plus website.

If you're not interested in the APR Plus limited powertrain warranty, and want even more power, check out our other Stages.

APR Stage I ECU Upgrade

The APR Stage I ECU Upgrade is the first step towards making more power! This simple upgrade requires no engine hardware modifications, and produces 433-465 HP with 364-385 FT-LBS of torque. Gains as high as 147-174 HP and 119-141 FT-LBS of torque are available throughout the power band, making the vehicle exceptionally quicker in all scenarios. To get more power, the vehicle can be outfitted with an upgraded APR Intake System, exhaust systems, APR Supercharger Cooling System and other small modifications without requiring any new modification to the ECU. 

For the next step in incresed power, APR Stage II ECU Upgrade is available for use with APR's Supercharger Drive and Crank Pulley upgrades.

Please note, transmission software is required to achieve power figures past the factory redline.

APR Stage II ECU Upgrade

The APR Stage II ECU Upgrade is the next step towards making more power. This stage is designed for use with a pulley upgrade that spins the supercharger faster, such as an APR Supercharger Drive Pulley upgrade, APR Supercharger Crank Pulley, or upgrading both units simultaneously. At least one pulley upgrade is required to run this software. This stage is compatible with an upgraded APR Intake System, exhaust systems, APR Supercharger Cooling System and other small modifications, all without requiring any further modification to the ECU.

With APR's Supercharger Drive Pulley upgrade, the engine produces 448-481 HP with 381-406 FT-LBS of torque. Gains as high as 166-196 HP and 135-159 FT-LBS of torque are available throughout the power band. If using APR's Supercharger Crank Pulley upgrade instead, the power and torque figures grow slightly higher.

When using both APR's Supercharger Drive and Crank Pulley upgrades together, the engine produces 445-527 HP and 415-471 FT-LBS of torque. Gains as high as 168-245 HP and 135-198 FT-LBS are available throughout the power band. For those looking for even more power, the APR Stage II+ Ultra ECU Upgrade is available for use with APR's Ultracharger Throttle Body, unlocking the full potential of the factory supercharger system!

An APR Supercharger Cooling System is highly recommended and may be required to meet the advertised power figures, especially when running both pulley upgrades.

Please note, transmission software is required to achieve power figures past the factory redline.

APR Stage II+ Ultra ECU Upgrade

Representing the ultimate upgrade for the 3.0 TFSI, APR’s Stage II+ Ultracharger Software is for use with the APR's Ultracharger Throttle Body and APR's Supercharger Drive and Crank Pulley upgrades. This stage is compatible with an upgraded APR Intake System, exhaust systems, APR Supercharger Cooling System and other small modifications, all without requiring any further modification to the ECU.

The system produces an astonishing 478-541 HP with 429-475 FT-LBS of torque. Gains as high as 194-255 HP and 157-206 FT-LBS of torque are available throughout the power band. The software was designed for use with the Ultracharger’s included NGK Iridium IX BKR9EIX spark plugs and an upgraded APR Supercharger Cooling System. IAT’s must be below 75c to achieve the advertised power figures. An APR Intake System is highly recommended and required to meet the advertised power figures. Finally, at these power levels, APR does not recommend use of the factory catalyst. 

Please note, transmission software is required to achieve power figures past the factory redline.

APR ECU Upgrade Standard Features:

Acceleration Enhancements: Beyond horsepower and torque enhancements, APR’s Calibration Engineers were able to increase the acceleration rate of the vehicle through other calibrations changes. Ignition delay is reduced resulting in a more responsive pedal without altering overall throttle sensitivity. Furthermore, throttle lag commonly noticed at slow speeds and while reapplying throttle has been reduced. 

Speed Limiter: APR’s ECU upgrade increases the vehicle's top speed limiter for blistering sprints around the track or across the Autobahn without the speed limiter shutting down the fun.

Left Foot Braking: APR's Left Foot Braking feature allows more control over the vehicle’s throttle. The factory equipped vehicle's throttle input is disabled while pressing the accelerator and brake at the same time. Left Foot Braking, a common motorsport driving technique, allows the driver complete control over the vehicle’s throttle and braking system, which may give the vehicle the edge it needs at the track.

Motorsport Rev Limiter: APR’s Motorsport Rev Limiter allows the engine to reach max RPM without the ECU slowing down acceleration nearly 150 RPM earlier. The result is more power to redline and a definable redline feeling as seen on Audi Quattro GMBH vehicles such as the RS4, RS5 and R8.

Increased Fuel Economy: APR’s Calibration Engineers paid close attention to several parameters directly related to fuel economy, especially while cruising at highway speeds. Depending on driving style and fuel quality, better miles per gallon may be achieved.