CTS Turbo Race 3.5" Downpipe BMW N55 (Pneumatic Wastegate)

The CTS Turbo catless downpipe for the BMW N55 (pneumatic wastegate) is built to maximize exhaust flow for the highest power gains. Do not let factory parts hold back performance and sound — this is how you unleash the N55. CAD-designed to drop perfectly into the factory location, it is hand TIG welded from T304 stainless and back-purged for years of reliable service.

Product Details

• 3.5" race downpipe
• Designed and validated on a real car in real-world conditions
• T304 stainless steel, TIG welded back-purged construction
• Replaces the restrictive factory downpipe
• Big power gain with no loss of refinement
• Sporty exhaust tone that stays subtle when cruising
• No drone with the factory exhaust

Proper tuning software must be used to clear the CEL that will occur; a Bootmod3 software upgrade is strongly recommended. For off-road use only. Stage 2 software is required to avoid a check engine light.

Application Guide

• F30 BMW 335i & 335xi 2012 - 07/2013
• F20/F21 BMW M135i & M135xi 2012 - 07/2013
• 135i or 335i with a production date after 07/2013 will need the 4" downpipe

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.