Product · United States

Custom High-flow Catalytic Converter for S4 S5 B9 2017-2020 SS304 Insulated Downpipe Exhaust Header Racing Sound Upgrade

Product no longer available. The stores we track no longer sell it; last price seen $741.81.

Price history: 3 daily prices tracked since 2026-10-19; lowest $740.83, highest $741.81.

Custom High-flow Catalytic Converter for S4 S5 B9 2017-2020 SS304 Insulated Downpipe Exhaust Header Racing Sound Upgrade

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