APR’s ECU Upgrades are the best dollar-per-horsepower modification one can make to the 2.9T 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. Once the ECU is unlocked, the software loads to the factory ECU through the OBD-II port, resulting in a clean and headache-free install.
The APR Plus ECU Upgrade is the first step towards making more power, and it includes APR's limited powertrain warranty. This simple upgrade requires no engine hardware modifications, and produces 488 HP with 537 FT-LBS of torque. Gains as high as 75 HP and 89 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 the Stage 1 ECU Upgrade (91 octane). To get even more power, you can add any of the other Stage 1 compatible products and still be covered under the APR Plus warranty!
The APR Stage I ECU Upgrade is the first step towards making more power! This simple upgrade requires no engine hardware modifications, and produces 488-550 HP with 537-606 FT-LBS of torque depending on fuel grade. Gains as high as 75-129 HP and 89-168 FT-LBS of torque are available throughout the power band, depending on fuel grade and factory output, making the vehicle exceptionally quicker in all scenarios.
APR Stage 1 is available for 91 AKI, 93 AKI, 100 AKI, 104 AKI, and E60-E85 fuel grades in North America, and 95 RON, 98 RON, 104 RON, 108 RON, and E60-E85 in the Rest of the World.
Please note, APR's E85 software is not a full flex fuel program. In this mode the engine is only designed to work on E85, as found directly at the pump, including both summer and winter blends from E60-E85. Using traditional pump fuels in this mode may result in engine damage. Do not manually blend with traditional pump fuel or race fuels or use race specific barrels of E85. To ensure proper E85 content levels, APR recommends using an E85 content sensor.
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.
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.
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.
APR’s DirectPort Programming is now available! Any APR Dealer in the world, connected to the Internet, has direct access to APR’s latest ECU upgrades for loading directly over the vehicle's OBD-II port. This completely eliminates the need to remove and open the ECU for currently available files and can be uninstalled at any time!
APR Calibration Report
Stage NAR Fuel ROW Fuel Max HP Max TQ Max HP Gain Over Stock Max TQ Gain Over Stock
Stock As Reported by Audi 91 AKI 95 RON 444 HP 443 FT-LBS
Stock As Measured by APR 93 AKI 98 RON 458 HP 469 FT-LBS
APR Stage I 91 AKI 95 RON 488 HP 537 FT-LBS +75 HP +98 FT-LBS
APR Stage I 93 AKI 98 RON 498 HP 556 FT-LBS +90 HP +118 FT-LBS
APR Stage I 100 AKI 104 RON 524 HP 581 FT-LBS +115 HP +143 FT-LBS
APR Stage I 104 AKI 108 RON 532 HP 606 FT-LBS +129 HP +168 FT-LBS
APR Stage I E60-E85 E60-E85 550 HP 569 FT-LBS +104 HP +123 FT-LBS
- APR recommends and tuned with Sunoco GT 260 for 100 AKI mode and Sunoco GT 260 Plus for 104 AKI mode. Never use lower octane than specified by the mode.
- E85 software is not a full flex fuel program. In this mode the engine is only designed to work on E85, as found directly at the pump, including both summer and winter blends from E60-E85. Using traditional pump fuels in this mode may result in engine damage. Do not manually blend with traditional pump fuel or race fuels. To ensure proper E85 content levels, APR recommends using an E85 content sensor. Before using Ethanol, educate yourself and follow our switching guide.
- Max increases are based on APR's actual measured stock values and not those reported by VAG. | RON = ROW Fuel Grades | AKI = North American (RON+MON)/2 Fuel Grades.
- Reported wheel figures measured on APR's in house Dynamometer using SAEJ1349 correction and an average of multiple runs. Crank figures are estimated based on the measured wheel figures. Results may vary depending upon environmental conditions, vehicle, transmission, vehicle health, operating conditions, temperatures, fuel grade, dyno type, dyno setup, other variables and other modifications. On the dyno, this platform will see large swings in power based on intake air temperature, the gear in which it's dynoed, and transmission temperature / oil viscosity.
NOTICE: THIS MOTORSPORT/RACING PRODUCT IS NOT DESIGNED TO MEET ANY FEDERAL EMISSIONS STANDARDS IN THE USA AND IS NOT FOR STREET OR HIGHWAY USE. THIS PRODUCT IS NOT C.A.R.B. COMPLIANT AND IS NOT FOR SALE OR USE IN CALIFORNIA, USA. APR MAKES NO CLAIMS THIS PRODUCT COMPLIES WITH ANY EMISSION LAWS IN ANY JURISDICTION. IT IS ENTIRELY THE RESPONSIBILITY OF THE PURCHASER TO INFORM THEMSELVES OF ANY LAWS OR REGULATIONS WHICH MAY PROHIBIT USE OF THIS PRODUCT.