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The aFe MACHForce XP 2.5-inch stainless steel cat-back for BMW M3 (E90/E92/E93) V8 S65 (2007–2013) opens exhaust flow with mandrel-bent 304 tubing and a crossover balance tube to optimize pulse tuning, yielding roughly 11 hp and 10 lb-ft of torque. Hand TIG-welded construction, dual polished quad tips and factory hanger locations allow bolt-on installation while the muffler design reduces high-pitch tones and drone.
aFe MACH Force XP Exhaust Cat-Back 2.5in Dia SS-304 Polished Tips 07-13 BMW M3 (E92/93) V8 4.0L
