Remus GPF back Racing System Left/Right with Integrated valves using the OE valve control system with 4 tail pipes Ø 98 mm straight, carbon insert - 3 Series G80 M3 Competition 375 kW S58B30A 2021- Audi S3 guaranteed to be leak free

guaranteed to be leak free and give a firmer

gearbox with integrated limited slip differential

The Nankang AR-1 is available in 12" to 21" with more sizes constantly being added

VLN and the legendary ADAC Zurich 24h-race Nürburgring

Remus GPF back Racing System Left/Right with Integrated valves using the OE valve control system with 4 tail pipes Ø 98 mm straight, carbon insert - 3 Series G80 M3 Competition 375 kW S58B30A 2021- Audi S3 guaranteed to be leak freeAggressive racing sound Shot blasted surface, 100% stainless steel Performance increase, low back pressure Light weight construction Perfect shape and fitment Handmade in Austria