Add dyno-proven power and unique sound to your BMW X5/X6 M with this Twisted Steel Race Series down-pipe that outflows and outperforms the factory down-pipe. Constructed from 3-1/2" - 3" mandrel-bent, brush finished 304 stainless steel tubing to improve exhaust flow to deliver increased horsepower and torque. This one piece designed, direct fit down-pipe also features a factory-style V-band flange, heavy duty flex tube and factory O2 sensor and auxiliary ports so there is no modifying, cutting or drilling for a hassle-free installation.

Performance Gains: In-testing, this down-pipe resulted in gains up to +21 horsepower and +29 lbs. x ft. of torque, as measured on our in-house dyno.

304 Stainless Steel Construction: This down pipe is constructed of 3-1/2" - 3" mandrel-bent, brush finished 304 stainless steel tubing for maximum flow, corrosion resistance and quality finish.

V-Band Flange: Quality CNC machined, V-band flange mounts directly to the factory turbo for a leak-free sealing surface.

TIG-Welded: 100% TIG-welded for race proven strength and durability.

Heavy Duty Interlock Flex Pipe: This unit utilizes heavy duty flex tubing with internal interlock liners to reduce torque stress.

Hassle-Free Install: This one piece designed down-pipe features a factory-style V-band flange, heavy duty flex tube and factory O2 sensor and auxiliary ports so there is no modifying, cutting or drilling for a hassle-free installation.

Race Disclaimer: This is a Race Only product that is to be used solely for competition, it cannot be used on vehicles that are operated on public streets, roads or highways. Its use is limited to closed-course and open-course racing that is formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, could be in violation of local, state and federal laws. To complete the purchase of this item, aFe POWER competition acknowledgement/liability release form must be filled out and submitted.

aFe POWER down-pipes are engineered and manufactured in our Corona, California manufacturing facility.