This is a Race-only product. An electronically signed Race-only Product Acknowledgement Agreement is required prior to shipping out. The use or installation of this product outside of the intended closed circuit racing purpose may be illegal under the Federal Clean Air Act (42 U.S.C. § 7522(A)(3)). Instructions for the waiver will follow after checkout.
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!
At Home APR Flashing - How does it work?
1. Purchase the software applicable to your vehicle (this page)
2. Purchase the required hardware (APR Cheetah Cable) - Links below
3. Complete the form that will be emailed to you after checkout. This will arrange all the necessary steps to complete the flashing process.
Required Hardware: APR Software Flashing Cheetah Cable (Get Up to 80% back of what you paid for this*)
After checkout, you will receive an email from USP Motorsports with instructions on how your ECU can be flashed.
NOTE: This software must be purchased along with a required APR Software Flashing Cheetah Cable. (Note: We highly recommend getting the complete APR At Home ECU/TCU Flashing Kit to avoid any potential issues during the flashing process)
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 124-155 HP and 90-113 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.
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.
Stage 2 Options: Click on the options below
Stock to Stage 2: APR ECU Stage 2 Software Tune For Audi B8/B8.5 S4/S5, A6/A7/Q5/Q7/A8 3.0T
Stage 1 to Stage 2: APR ECU Stage 2 Upgrade Tune For Audi B8/B8.5 S4/S5, A6/A7/Q5/Q7/A8 3.0T
For the next step in increased power, APR Stage II ECU Upgrade is available for use with APR's Supercharger Drive and Crank Pulley upgrades. (Verify is bolt on or press on)
APR Supercharger Drive Pulley - (57.75 mm) - Press on (3.0T Gen 1 Simos 8.x) - MS100135
APR Supercharger Drive Pulley - (57.75 mm) - Bolt on on (3.0T Gen 2 Simos 16.x) - MS100139
APR Supercharger Crank Pulley - (187 mm) - MS100133
Please note, transmission software is required to achieve power figures past the factory redline.
Concerned with Warranty? APR also offers the APR Plus Tune (with Powertrain warrranty)... See below
APR PLUS - Powertrain Warranty Included: APR Plus ECU Stage 1 Tune
For Audi B8/B8.5 S4/S5, A6/A7/Q5/Q7/A8 3.0T
Need to go back to stock? We have solutions for that as well... (Click below)