APR Performance ECU Upgrade | 8V RS3 · 8S TT RS MK1 ID.4 APP 310 Dual Motor +19 AWHP & +20 AWFT-LBS

+19 AWHP & +20 AWFT-LBS gain over stock (APR Stage 1 93)

It’s literally plug and play

5" Turbo to Downpipe V-Band Exhaust Clamp Set

Our full 3" piping and large 5" 200CPSI CAT maintain optimal flow to support any power output up to large and hybrid turbochargers

minimizing turbo lag

APR Performance ECU Upgrade | 8V RS3 · 8S TT RS MK1 ID.4 APP 310 Dual Motor +19 AWHP & +20 AWFT-LBSAPR'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