CTS Turbo BMW E90/E91/E92/E93, E81/E82 N55 135i/335i, E84 N55 X1 downpipe

CTS Turbo's catless downpipe for the late E-series N55 single-turbo cars — the BMW E90/E91/E92/E93 335i, E81/E82 135i, and E84 X1 35i — opens up exhaust flow well beyond the restrictive OEM pipe. Expect sharper throttle response, more power, and a meaner engine note.

Note: these are for late E-series models with the N55 twin-power single-turbo engine.

Product details

• T304 seamless stainless steel tubing
• 3" diameter pipe off the turbo, splitting to dual 2.5" pipes
• T304 stainless steel flanges
• 100% TIG welded
• T304 stainless steel O2 bungs
• Great sound and precise fitment

Fitment (E-series N55 engines)

• 2011-2013 E82 BMW 135i
• 2010-2013 E90/E91/E92/E93 BMW 335i & 335xi N55
• 2012-2015 E84 BMW X1 35i

Stage 2 software is required to avoid a check engine light.

Emissions disclaimer: This product is not legal for sale or use on pollution-controlled vehicles operated on public roads and is intended for off-road, race, or closed-course competition use only. You are responsible for compliance with all applicable emissions laws; use on public roads may violate the Federal Clean Air Act (42 U.S.C. § 7522) and similar state laws. Please check your local laws before purchase and installation.

Ships from our Vancouver shop — KORE SPEED is proudly Canadian-owned, with no surprise cross-border duties for Canadian buyers. Questions on fitment? Email support@korespeed.com.