Audi 4.0T Catted Downpipe For C7 S6, S7, RS7 & D4 A8, S8 - ARM Motorsports m3 (F80) Upgrade your vehicle's exterior with

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Audi 4.0T Catted Downpipe For C7 S6, S7, RS7 & D4 A8, S8 - ARM Motorsports m3 (F80) Upgrade your vehicle's exterior withHIGHLIGHTS Gain up to 37whp 42wtq Faster Turbo Spool Improved Exhaust Note Here Catless Version PROFILE The ARM 4. 0T Catted Downpipes immediately improve backpressure in your exhaust system,allowing your Audi 4. 0T turbos to spool faster and generate more power lower in the RPM range. The OEM 4. 0T downpipes incorporate two large coffee can size catalysts which reduce exhaust flow and power from your 4. 0T. By replacing your OEM 4. 0T downpipes with