The APR Plus ECU upgrade typically raises the power output of the 4.0T to 555 horsepower and 609 lb-ft of torque on 91 octane fuel with peak gains of 144 horsepower and 178 Lb-ft of torque! Expect improved throttle response and a smoother, more powerful top end with no loss of drivability or reliability.
APR's Plus program includes a supplemental limited powertrain warranty from APR which matches the terms of your remaining Factory Powertrain Warranty. For the remainder of your OEM warranty period if you have a warranty claim which is rejected by the manufacturer due to the APR plus tune the APR warranty will then allow the car to be repaired under the APR Warranty at Achtuning or any other APR Plus dealer nationwide.
The power output of the APR Plus tune can be increased further with supporting APR Stage 1 modifications such as intake, intercooler, and TCU software upgrades. Further modifications such as downpipes or high flow cats, larger turbos and upgrades from other manufacturers would invalidate the warranty. Manual transmission clutch (flywheel, flex plate, and disc) are excluded from warranty coverage. For full terms see the APR Plus Warranty Terms and Conditions.
APR Audi C7.5 4.0T ECU Upgrade Vehicle Fitment:
Installation: The APR tune is a software update to the OEM ECU, new programming is loaded through the OBD port under the dashboard, no physical ECU or "chip" is included, no ECU removal or soldering is required. Installation can be performed at our facility on a drop in basis weekdays from 9-4. With APR's DirectPort ECU tuning the ECU can be programmed in around 60 minutes with no labor charge.