APR A4 ECU UpgradesAPRB5A4ECU
The ultimate chip upgrade for the A4 1.8T engine is available from APR. After months of long nights and many hours of dyno work we are pleased to offer you chip tuning that is second to none. We have worked hand in hand with many customers to deliver a chip that works. Expect huge increases in low-end torque, improved throttle response and a smoother, more powerful top end.