2010-2016 Audi S4

The Audi S4 is such a well built car for the true enthusiasts. From the factory you're getting a well built, comfortable and powerful car. At APR we can help take what you already have and make it even better! With a full support within Software & Tuning, Wheels, Brakes, Engine Hardware and so much more.

Engine Hardware

From intakes to exhausts, and everything in between, our hard parts are the perfect complement to our ECU and TCU software upgrades.
Shop Now
Wheel and Accessories

Improve the looks and performance of your vehicle, customized to your desire.
Shop Now
Cosmetics and Gear

Show of your APR Pride!
Shop Now
Software & Tuning

Transform your vehicle with our software upgrades. We optimize the factory management systems to take full advantage of the vehicle's capabilities to make the driving experience dramatically more exciting.
Shop Now

APR ECU UPGRADES

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
Stages - Multiple performance levels depending on installed hardware
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
Rev Limiter - Increased redline for higher revving
Standing Limiter - Increased standing limiter for higher revving at idle
Motorsport Limiter - With the soft limiter removed, you‚Äôll get full power right up to the hard, ‚Äúbap bap bap‚Äù redline fuel cut
Economy - While cruising, or driving normally, your fuel economy may benefit from our optimized calibration
Flash Counter - Flash counter does not increase with each flash
Direct Port Programming - Clean and easy install through the OBD II port without removing the ECU
Free Updates - Get free updates for life

2010-2016 Audi S4

APR ECU UPGRADES

APR OPEN CARBON FIBER INTAKES