
MAD N55 Downpipe V2 BMW M135 M235 M2 335 435 4.0"
Upgrade from the stock N55 downpipe to the MAD N55 V2 4.0" Catless Downpipe for maximum airflow, power and sound. Removing the restrictive factory catalytic converters eliminates back-pressure so your turbo spools faster and reaches maximum power — with a much nicer note as a bonus.
Expect up to a 30 HP increase on a tuned N55 with the stock turbo, and more on an upgraded turbo.
Features
- Large 4.0" catless design.
- Smooth bends for maximum airflow with no drone.
- Up to 30 HP on the stock turbo — even more with an upgraded turbo.
- Lifetime warranty on defects and fitment; 90-day return; ships in 1–2 business days; spot-on fitment.
Fitment
- 2014–2015 BMW M135i & xDrive (after 07/13 production)
- BMW M235i & xDrive
- BMW M2
- 2014–2015 BMW 335i & xDrive (after 07/13 production)
- BMW 435i & xDrive
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.
Pairs well with

MAD N55 Downpipe V2 BMW M135 M235 M2 335 435 4.0"
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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