Audi RS3 8Y GPF-Back Racing Exhaust System by RemusThe Remus RACING GPF Back System for the Audi RS3 Limousine & Sportback (Type GY DNW with GPF) is a motorsport focused exhaust upgrade engineered to deliver maximum sound and flow by replacing the original front silencer with a non resonated racing section. Built around a centred absorption principle sport exhaust, this system increases pipe diameter from the factory 65 mm to 76 mm throughout, reducing back pressure and unlocking a far more aggressive