APR ECU Upgrade 4.0T - Stage 1 Software Tune

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!

 

Features:

Horsepower - More horsepower throughout the whole rpm band

Torque - More torque throughout the whole rpm band

Warranty - APR Plus is available, providing a factory term limit matching limited powertrain warranty

Program Switching - Change programs and access features with your cruise control stalk

APR Mobile - Change programs and access features with your smart device

Valet Mode – Neuters the vehicle, giving the driver minimal output

Anti-Theft – Password protects driving the vehicle

Security Lockout – Password protects program switching

Fault Code Erase – Resets ECU fault codes and adaption on the fly

COD Delete – Optionally disable Cylinder On Demand to keep the engine running smoothly in full cylinder mode all the time

Fuel Grades - Multiple octanes from which to choose

Acceleration - Accelerate faster with more power and reduced throttle lag

Brake Boosting - Left foot braking or brake boosting added

Speed Limiter - Go as fast as you want with the speed limiter out of the way

Economy - While cruising, or driving normally, your fuel economy may benefit from our optimized calibration

Motorsport Limiter - With the soft limiter removed, you’ll get full power right up to the hard, “bap bap bap” redline fuel cut

Direct Port Programming - Clean and easy install through the OBD II port without removing the ECU

 

Applicable Vehicles: 

• Audi S8 2013-2018 4.0T

Overview: 

• Gains of 121-171 Wheel Horsepower
• Gains of 147-199 FT-LBS of Torque
• Faster and More Exciting

 

APR Stage I ECU Upgrade (Only Stage 1 Is Included With This Purchase)

The APR Stage I ECU Upgrade is the first step towards making more power! This simple upgrade requires no engine hardware modifications and produces 646-692 HP with 656-713 FT-LBS of torque. Gains as high as 121-171 HP and 147-199 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 Intake System, exhaust systems, and other small modifications without requiring any new modification to the ECU.

 

 

Stage 2 Options: Click on the options below 

 

Stage 1 to Stage 2: APR ECU Stage 2 Upgrade Tune

 

 

 

Need to go back to stock? We have solutions for that as well... (Click below)

• Stage 1 or 2 Back to Stock: APR ECU Flash Back to Stock Tune (Engine)
• Transmission Tune Back to Stock: APR TCU Flash Back to Stock Tune (Transmission)
• Stage 1 or 2 & Transmission Back to Stock: APR ECU & TCU Flash Back to Stock Tune (Engine and Transmission)