Improved throttle response and horsepower gains

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5i E83 MY 2004-2006BMW X3 3

BMW M43 Applications:

whether on the track or the street

Kies Motorsports Charge Pipe & Boost Pipe, BMW F2X/F3X N55 F85 Improved throttle response and horsepower*NOTE: 7. 5in aftermarket Front Mount Intercoolers may have issues mounting* The charge pipe and boost pipe are the pipes that hold pressurized air from your turbo and take it to your engine. Unfortunately, BMW typically makes OEM charge pipes out of plastic or rubber, which is a terrible idea for holding pressurized air. While this is a very cost effective thing for a manufacturer to do, they typically fail when the plastic starts to age, especially