Buy 2005 Audi S4 Exhaust Muffler (Rear). 4.2 LITER, manual trans. S4; Rear; Manual Trans; Right. Amplifier, Any, Fitment - OEM Audi Part # 8E0253609HB (8E0-253-609-HB)

Muffler.
A Muffler without any pipes, which are typically universal in fitment. and Amplifier; pipe. w/tpipe. Exhaust. Resonator. Silencer.

Exhaust Muffler

Fits S4

4.2 LITER, manual trans. S4; Rear; Manual Trans; Right.