The aFe MACHForce XP cat‑back exhaust for 2011–2012 BMW 335i (N55) uses 2.75in mandrel‑bent 304 stainless steel with a crossover balance tube to tune exhaust pulses and reduce drone. Hand‑brushed stainless construction, dual polished 3.5in tips and a high‑flow muffler deliver a deeper yet controlled exhaust note while improving flow; the system uses factory hangers for straightforward installation.
aFe MACH Force XP 11-12 BMW 335i L6-3.0L N55 E90/92 304SS 2.75in. Cat-Back Exhaust System