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The Remus axle-back exhaust for 2011 BMW 1 Series F20 (5‑door) and F21 (3‑door) with the N13B16 engine is a rear-section replacement matched to those chassis and engine layouts. This axle-back is built to align with the factory exhaust routing on F20/F21 applications, providing a model-specific rear assembly intended to swap in for the original rear section.
Remus 2011 BMW 1 Series F20 5 Door / F21 3 Door (N13B16) Axle Back Exhaust
