Remus axle‑back (cat‑back family) for 2011 BMW 1 Series F20/F21 replaces the rear section and pairs 84mm carbon insert tail pipes with a front silencer to moderate tone. Tuned for the F20/F21 chassis, the assembly combines rear styling with a front silencer that smooths resonance. It’s a coordinated upgrade that balances visual impact with controlled sound output.

Remus 2011 BMW 1 Series F20/F21 Axle Back Exhaust w/84mm Carbon Insert Tail Pipe Set & Frt Silencer