Genuine OEM Audi Expansion Chamber Muffler, part number 5QF253209AA. This part functions as a primary muffler in the exhaust system, designed to reduce the noise generated by engine combustion gases. It is typically located towards the rear of the vehicle, connected to the exhaust pipe. The expansion chamber design helps to cancel out sound waves. Genuine OEM mufflers are constructed with corrosion-resistant materials and designed for precise fitment to ensure effective noise reduction and longevity.

Catalogue entry: EXHAUST SI.

Fitted with: 5QF253209Q EXHAUST SI, 1K0253141T CLIP, 1K0253141S CLIP, 1K0253147F RET. RING, N0195307 BOLT.