BMW N54 135i / 335i E82 E90 E92 3 in. Downpipes

3 in. T304 stainless steel downpipes for N54-powered BMW 135i and 335i models, built from 16-gauge (1.59mm) tubing.

Why you need it

Replacing the restrictive factory downpipes with larger 3 in. piping improves exhaust flow from the twin turbos on the N54.

Fits

• BMW 335i E90 / E91 / E92 / E93 N54 (2007-2010), RWD only
• BMW 135i E82 N54 (2008-2010)
• BMW 335is E92 (2011-2013)
• Does not fit xi / AWD models, the 2007 335i or the 2009 335i base coupe

Features

• T304 stainless steel, 16-gauge (1.59mm)
• 3 in. (76mm) pipe diameter
• 3 in. V-band inlet, 2.5 in. flange outlet
• Fits LHD and RHD

Good to know

The listing does not mention catalytic converters. Intended for off-road and competition use only. Not legal for use on public roads in many areas. A supporting tune is recommended. Confirm fitment with your VIN before ordering.