13-19 BMW 135i 335i 435i M2 N55 Catless Downpipe F32/F33/F36/F22/F23
Circuit Werks catless downpipe for the N55 BMW.
Back pressure is significantly reduced by eliminating the restrictive catalytic converter in the factory downpipe with our catless which results in faster spool, an increase in power and more aggressive exhaust note.
All M135i & 335i models produced up to 07/13 require the 3.5″ version of this downpipe that we offer as well. The 3.5" uses a Pneumatic Wastegate
M135 and 335i models produced after 07/13 require the 4″ model of this downpipe.
The 4" uses an Electronic Wastegate
All M235 and 435i models require the 4″ version of this downpipe. Please confirm by looking at your Turbo Wastegate. It is located on the lower passenger side of the engine next to the Turbo.
- Made from hand crafted, TIG welded stainless steel.
- Smooth radius bends to decrease turbulence and increase flow.
- CNC stainless steel flanges.
- Gains from 20-25hp with tune.
Details
This product is crafted with quality materials to ensure durability and performance. Designed with your convenience in mind, it seamlessly fits into your everyday life.
Shipping & Returns
We strive to process and ship all orders in a timely manner, working diligently to ensure that your items are on their way to you as soon as possible.
We are committed to ensuring a positive shopping experience for all our customers. If for any reason you wish to return an item, we invite you to reach out to our team for assistance, and we will evaluate every return request with care and consideration.
