$595.00 USD
$595.00 USD












The MMX Performance BMW N55 Turbo-Side Charge Pipe Kit replaces the most failure-prone section of the OE boost pipework on N55-powered F2X / F3X BMWs with a precision-built aluminum upgrade. Designed to work alongside the MMX Intake-Side Charge Pipes, the turbo-side kit completes one of the most cost-effective reliability and performance upgrades available for the platform.
The factory plastic turbo-outlet pipework is built to a cost target, not to a performance target, and at any meaningfully increased boost pressure it becomes a question of "when," not "if," the OE pipes will split or crack. The MMX lightweight aluminum replacement pipes solve the issue permanently. Smooth-bore, mandrel-bent geometry improves airflow versus the OE setup, while the rigid aluminum construction eliminates the deformation under load and vacuum that the factory plastic pipes are known for.
The result is consistent, repeatable boost delivery, sharper throttle response, and reliable performance that holds up to high boost, sustained track use, and any state of tune the N55 can support. Every connection is sealed with included gaskets for precise, leak-free fitment.
Finished in a durable crinkle black coating with laser-etched MMX branding, the pipes deliver an OEM+ engine bay aesthetic to match their performance. Installation is fully reversible using factory mounting points, requires no cutting or modifications, and is the definitive fix for the N55's most well-known boost-pipework weakness, paired with the MMX Intake-Side Charge Pipes for a complete charge pipe solution.
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$595.00 USD
$595.00 USD
This product can expose you to chemicals such as lead and lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
For a complete list of chemicals known to cause harm, visit https://www.p65warnings.ca.gov/chemicals.
Under the federal Clean Air Act (42 U.S.C. §7522(a)(3)), it is illegal to manufacture, sell, install, or use any part that defeats or alters a motor vehicle’s emission control system for use on public roads. Unless a product has received an Executive Order (EO) from the California Air Resources Board (CARB), it is not legal for use or installation on any pollution-controlled vehicle driven on public highways.
Some states have CARB-equivalent or independent emissions laws. Customers are responsible for verifying local regulations before purchasing or installing emissions-related products.
All performance, racing, or competition parts sold by this company are intended solely for off-road, closed-course, or competition use on vehicles that are never registered or used on public highways.
Kies Motorsports, LLC sells and markets these products for lawful use only. We do not condone or authorize the use of emission-control defeat devices or any modification that violates the Clean Air Act or state regulations.