MMR Charge Pipe Kit for BMW E8X E9X N55 135i 335i 335xi
Upgrade the weak factory plastic charge pipe on your N55-powered BMW with the MMR high-flow aluminium charge pipe kit. Designed for BMW 135i E8X and 335i 335xi E9X models with the N55 engine, this direct replacement boost pipe dramatically improves reliability and airflow while enhancing throttle response and power delivery. If you are running increased boost or a tuned map, this is the essential N55 charge pipe upgrade that prevents cracking, splitting and boost leaks that can lead to limp mode.
Precision engineered from lightweight aluminium with smooth-bore internals, the MMR charge pipe reduces turbulence and deformation under load compared with the OE plastic pipework. Finished in a durable crinkle black coating with laser-etched MMR logo, it looks as good as it performs. A handy 1/8 inch bung allows easy addition of methanol or water injection. This kit includes everything needed for a clean, secure installation including the silicone coupler hose, c-clip and jubilee clips, plus a CNC leak-free connection for OE-perfect fitment.
Why choose the MMR N55 charge pipe
- Direct replacement for the fragile OEM plastic charge pipe on N55 engines
- High-flow, smooth-bore aluminium construction for improved airflow and throttle response
- Built to handle increased boost and tuned power levels for long-term reliability
- Crinkle black finish with laser-etched MMR branding for an OEM-plus look
- CNC leak-free connection for a precise, secure fit
- 1/8 inch bung for methanol or water injection integration
- Complete kit with silicone coupler hose, c-clip and jubilee clips
What’s in the box
- High-flow aluminium charge pipe with CNC leak-free connection
- Silicone coupler hose
- C-clip
- Jubilee clips
Fitment
For BMW models equipped with the N55 engine:
- BMW 135i E8X - E82 coupe and E88 convertible - N55
- BMW 335i E9X - E90 saloon, E91 touring, E92 coupe, E93 convertible - N55
- BMW 335xi E9X xDrive - N55
Search terms and common aliases: BMW N55 charge pipe, BMW 135i charge pipe, BMW 335i charge pipe, BMW 335xi charge pipe, boost pipe, turbo pipe, intercooler charge pipe, aluminium chargepipe kit, E8X E9X charge pipe upgrade, N55 boost leak fix.
Proven by us and loved by our customers
We run this MMR charge pipe on our own N55 cars and it has been a consistently popular upgrade with Nforcd customers. Feedback highlights the stronger, more responsive feel under boost and the peace of mind that comes from eliminating the failure-prone OEM plastic pipe.
Installation
This is a direct replacement for the OE pipework. Professional fitting is recommended. Nforcd offers installation at our Warwickshire workshop. To request a fitting quote, please email Sales@nforcd.com.
Key benefits at a glance
- Improves reliability under stock or increased boost
- Enhances throttle response and power delivery
- Prevents common OEM charge pipe failures and boost leaks
- Ready for future upgrades with 1/8 inch accessory bung
- Clean OEM-plus appearance with durable crinkle black finish
Upgrade your BMW N55 charge pipe today for stronger performance, improved reliability and confidence under boost. Perfect for daily-driven cars, track builds and tuned setups alike across BMW E8X 135i and E9X 335i 335xi platforms.



