Audi A4 Apr Stage 3. Date range applicable to the USA. The APR Stage I ECU Upgrade is the first step towards making more power.
To this day the APR Stage III has progressed over nine different reiterations across sixteen different Volkswagen Automotive Group models from the Audi A4 and Volkswagen GTI to the Seat Leon and Skoda Octavia and has yet to be duplicated. Date range applicable to the USA. APR Investment Cast Inconel Exhaust Manifold.
The APR Stage 3 K04 ECU Upgrade is the first step towards making more power.
Founded in 1997 APR is the global leader in performance aftermarket products for Volkswagen Audi Seat Skoda Porsche and other vehicles. Date range applicable to the USA. This simple upgrade requires an APR K04-064 drop-in turbocharger exhaust system intercooler and no other engine hardware modifications and produces 339-363 HP with 321-387 FT-LBS on B8 models and 329-374 HP with 350-408 on B85 models with flex fuel support. The facelifted models are often called B85.