CTS Turbo BMW N55 4" High-flow Catted Downpipe for EWG Models – F20 F21 F22 F23 F30 F31 F32 F33 F36 F87 M2
Unlock serious performance and sound from your BMW N55 with the CTS Turbo 4 inch high-flow catted downpipe for electric wastegate models. This premium T304 stainless steel catted downpipe replaces the restrictive factory downpipe to reduce backpressure, improve turbo spool, enhance throttle response and deliver a deeper, sportier exhaust note. If you are searching for a BMW N55 catted downpipe, BMW M235i downpipe, BMW 335i downpipe, BMW 435i downpipe or BMW M2 downpipe for EWG, this is the high quality, high flow solution enthusiasts choose.
Designed using CAD for an exact OEM-style fit, then hand TIG welded and back purged for strength and longevity, the CTS Turbo N55 catted downpipe is a proven performance upgrade for F-series EWG cars including M135i, M235i, 335i, 435i and F87 M2. Expect a noticeable gain in response and mid-range pull with an aggressive yet refined exhaust tone. We have installed and used this product on customer cars and the feedback on fitment, sound quality and performance has been excellent.
Why choose this CTS Turbo N55 catted downpipe
- 4 inch high-flow catted design for maximum exhaust flow on BMW N55 EWG engines
- Direct bolt-on replacement for the restrictive OEM downpipe
- T304 stainless steel construction, TIG welded and back purged
- Sporty exhaust sound under load and subtle when cruising
- No drone with factory exhaust in our experience
- Precisely designed and tested on real vehicles for perfect fitment
- Great power and response gains when paired with appropriate software
Fitment – BMW N55 with Electric Wastegate (EWG)
Compatible with F-series BMW N55 EWG models. If you are looking for a BMW F20 N55 downpipe, F22 N55 downpipe, F30 N55 downpipe, F32 N55 downpipe or F87 M2 N55 downpipe, confirm your car is EWG and see the list below.
1 Series
- F20 07/2013–2015 – M135i, M135ix
- F21 07/2013–2015 – M135i, M135ix
- F20 LCI 09/2015–06/2019 – M135i, M135ix
- F21 LCI 09/2015–06/2019 – M135i, M135ix
2 Series
- F22 09/2015–06/2017 – M235i, M235ix
- F22 LCI 09/2016–12/2019 – M235i, M235ix
- F23 09/2015–06/2017 – M235i, M235ix
- F23 LCI 10/2016–12/2019 – M235i, M235ix
- F87 M2 2014–2017 and 2016+ – M2
3 Series
- F30 07/2013–2016 – 335i
- F30 LCI 10/2014–10/2018 – 335i
- F31 07/2013–2016 – 335i
- F31 LCI 10/2014–06/2019 – 335i
4 Series
- F32 2013–02/2017 – 435i, 435ix
- F32 LCI 05/2016–12/2019 – 435i, 435ix
- F33 03/2015–02/2017 – 435i, 435ix
- F33 LCI 05/2016–12/2019 – 435i, 435ix
- F36 Gran Coupé 03/2015–02/2017 – 435i, 435ix
- F36 Gran Coupé LCI 05/2016–12/2019 – 435i, 435ix
Tuning and CEL information
- Stage 2 software is required to avoid a check engine light
- Bootmod3 software is strongly recommended to prevent CEL
- For OFF-ROAD use only for USA customers
Key specifications
- Material: T304 stainless steel
- Manufacturing: Hand TIG welded, back purged
- Design: 4" high-flow catted downpipe for BMW N55 EWG
- Direct fitment: Replaces OEM downpipe using factory mounting points
Part number
CTS-EXH-DP-0023-CAT
Warranty
1 Year CTS Turbo Warranty. All CTS Turbo products are warrantied against manufacturing defects for 12 months from the date of invoice. Warranty does not cover abuse, misuse, consequential damages, normal wear and tear, improper installation or damages resulting from racing. Warranties apply to the original owner only. If a product is found defective CTS Turbo will, at their discretion, repair or replace. Warranty on other manufacturers will be processed under their terms.
Please note: catalytic converters damaged by crackle tune are not covered under warranty.
Professional fitting
For installation we recommend professional fitting at Nforcd in Warwickshire. Request a fitting quote via Sales@nforcd.com.
Photos and videos
SEO fitment keywords for quick reference
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