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CTS Turbo 3.5 High-Flow CAT BMW N55 (Pneumatic Wastegate)

CTS Turbo 3.5 High-Flow CAT BMW N55 (Pneumatic Wastegate)

CTS TURBO
Availability:
in stock, ready to be shipped
SKU CTS-EXH-DP-0022-CAT
$379.99 - $379.99
$379.99
$379.99 - $379.99
$379.99
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We show live inventory for in-stock items. Products may sell out due to high demand but are restocked regularly. Out-of-stock items can still be ordered and usually arrive within a few weeks.

The CTS Turbo high-flow cat for BMW N55 (Pneumatic Wastegate) is made to maximize exhaust flow for the highest power gains. Do not compromise performance and sound with factory parts - unleash your BMW's potential! Designed using the latest in CAD technology; this part is made to fit perfectly in place of your factory downpipe. Manufactured from T304 stainless steel, hand TIG welded and back purged to ensure years of reliable performance. Product Details:
  • Precisely designed and tested on a real car in the real world
  • T304 stainless steel, TIG welded back-purged construction
  • Replaces restrictive factory downpipe
  • Great power upgrade with uncompromising performance
  • Incredible sporty exhaust sound, subtle when cruising
  • No drone with factory exhaust
To remove the CEL that will occur, proper tuning software must be used. The use of a proper Bootmod3 software upgrade is strongly recommended. For OFF-ROAD use only. Catalytic converters damaged by "crackle tune" are not covered under warranty. 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:  
 

This part also goes by the following cross reference.

Cross Reference Part Number:

Fits These Vehicles 6 applications
335i
Make Model Engine Years
BMW 335i 2012–2013
BMW 335i (F30) 2012–2013
335i xDrive
Make Model Engine Years
BMW 335i xDrive 2012–2013
BMW 335i xDrive (F30) 2012–2013
M135i
Make Model Engine Years
BMW M135i 2012–2013
BMW M135i (F22) 2012–2013

Fitment data last updated: 2026-06-26