aFe Power Elite Twisted Steel Down-Pipes Race 2015+ BMW M3/M4 (F80/F82) L6-3.0L (tt) S55

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aFe Power's introduces the "Race Only" Elite Twisted Steel down-pipes for the 2015 BMW M3/M4 (F80/82) with the L6-3.0L (tt) S55 engine. The down-pipes are 100% TIG-welded and constructed of mandrel-bent, 3", 304 stainless steel tubing with thick flanges to ensure a leak-free seal. This high performance race pipe delivers pure, race-inspired raw power and also produces an aggressive and exciting exhaust sound during hard throttle.