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CPE Cast N54 Downpipes (135i(xi)/335i(xi))


Product CodeCPEM1
ManufacturerBurger Tuning
Stock Level1

Earn Reward Points: 679

Dollar Value of Points: $6.79

Product Description

- 2007-2010 BMW 335i / 335xi
- 2008-2010 BMW 135i / 135 xi
- 2011+ N54 335IS

Eliminating restrictions in the exhaust system is key to increasing efficiency and power. Back pressure causes delayed turbocharger response and is a bottleneck.


CAM/CAD Engineering
Full 304 Stainless construction
Cast bellmouths for smooth transitions
Mandrel bent tubing
Laser cut flanges
TIG welded
Available with High Flow Catalytic converters
Optional Wideband O2 bungs available
Made in the USA
Lifetime Warranty

cp-eâ„¢ cast stainless downpipes have been designed specifically for the n54 motors to reduce back pressure and optimize exhaust flow.

+12whp +10wtq
CAD designed castings channel the gas from the twin turbos into mandrel bent tubing – as a result there are no harsh bends or transitions restricting flow. Made completely of high grade 304 Stainless steel, the system is strong and durable.

The ultra-precise fitment of the downpipes is the result of painstaking attention to detail and the utilization state-of-the-art manufacturing equipment. cp-eâ„¢ utilizes the latest in 3-D digitizing and reverse-engineering tools, and also take advantage of robotic cutting and welding systems to reduce the influence of human error. These tools ensure that each example is true to the original prototypes, which guarantees ideal fitment each and every time.

The downpipes may be installed without any permanent modifications, and are available with or without high-flow catalytic converters and additional wideband oxygen sensor bungs.

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