QST RS3 8Y High Flow Downpipe Assembly

Our all new Large bore cat-less Downpipe for the Audi RS3 8Y . Manufactured from high grade 304 stainless steel using tig weld. Our Downpipe removes the restrictive factory catalyst and OPF assembly. Allowing huge HP and TQ gains as well as un-leashing the that legendary Audi 5 cylinder Turbo engine sound everyone has grown to love since the Group B days in the 1980's. Gains of up to +75HP when paired with our downpipe only Stage 2 tuning.

*These are for off-road use*