BMW N55 exhaust
aFe Power
MSRP: $1495 • Info: afepower.com
Not missing a beat, aFe Power was one of the first tuners to release a new intake for the ’11 BMW 335i with the N55 motor, covered last month. And now they’ve developed an exhaust with its Mach Force XP system. Constructed from 2.75" polished 304 stainless steel and utilizing welded bayonet hangers, it has band-style clamps for an easy install. This is designed not to shift under heat or vibrations. Dual high-flow resonators produce a more aggressive tone without being too loud. Their testing showed 11hp and 13 lb-ft of torque improvement, so might be worth a try.