$595.00 USD
$595.00 USD
















The MMX Performance BMW B58 High-Flow Charge Pipe Kit is a direct replacement upgrade designed to improve reliability, airflow, and overall performance across B58-powered applications. The factory plastic charge pipes are a known weak point, particularly on tuned or higher-boost vehicles, where cracking and boost leaks are common over time.
Manufactured from lightweight aluminum, the MMX charge pipes eliminate the risk associated with the OEM plastic design while maintaining consistent performance under load. The rigid construction prevents deformation under boost or vacuum, ensuring stable airflow and reliable operation even at increased power levels.
Each pipe features smooth bore, mandrel-bent construction that has been CFD-optimized to improve airflow efficiency over the factory system. This results in improved throttle response and supports increased power output while maintaining consistent boost delivery.
Finished in a durable crinkle black coating with laser-etched MMX branding, the charge pipes offer a clean OEM+ appearance within the engine bay. Installation is straightforward, requiring no modification, and is fully reversible using factory mounting points and connections.
For added versatility, the charge pipes include a 1/8” bung, allowing for the integration of methanol or water injection systems if required.
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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.