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This system features an electronically controlled exhaust cutout valve to quickly switch between exhaust tones at the push of a button
This direct-fit catalytic converter is designed specifically for the 2004-2009 Audi S4 and interchanges with OE parts 8E0 254 554 PX and 8E0 254 551 PX
623in Viton Valve Stem Seal - Metal Jacket - 16 Pack
MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 441121 helps keep the check engine light off
8L DC Sports intake tubes feature lightweight aluminum alloy construction with a silver powder coated finish that is corrosion resistant
ARP 1/2in Dia Hex Bellhousing to Trans Stud Kit clearance This system features an electronicallyARP 1 2in Dia Hex Bellhousing to Trans Stud Kit
US$ 86.95
US$ 1250.00
US$ 35.95
US$ 39.95
US$ 54.95
US$ 58.95
US$ 29.00
