VRSF Catless Downpipe for N55 F26 X4 M40i
  • VRSF Catless Downpipe for N55 F26 X4 M40i

VRSF Catless Downpipe for N55 F26 X4 M40i


High Flow downpipe for the 2015 – 2018 BMW X4 M40i N55 F26. Gains instant power with this bolt-on

Last items in stock

The VRSF Upgraded Down Pipe for your F26 X4 M40i is THE best bang for the buck power mod available and it is available in either a race configuration or you can opt for our 200-cell high flow sport cat configuration. Back pressure is significantly reduced when eliminating the restrictive catalytic converter in the factory downpipe which results in faster spool, increased horsepower & a more aggressive exhaust note.

Every VRSF downpipe is constructed from mandrel-bent, SS304 grade stainless steel and our flanges are precision machined in order to ensure proper fitment every time. We also include a lifetime warranty as well as our “No Hassle” satisfaction guarantee (including fitment).

  • Made from mandrel bent, tig welded 304 grade stainless steel.
  • Smooth radius bends decrease turbulence and increase flow.
  • 200 cell high-flow sport cat & race options available.
  • Precision machined CNC flanges made from SS304.
  • Gains from 20-25hp with tune.
  • VRSF Lifetime Warranty

This item fits the following BMWs:

2015 – 2018 F26 BMW X4 M40i/M40iX N55


Data sheet

Part number
OE Part number
18328603873, 8603873

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