Is this suitable for a tuned N55 or stock only?

Both. The MMX BMW N55 charge pipe is a worthwhile reliability upgrade even at stock boost levels — the OEM plastic unit is marginal from the factory. For any E-chassis N55 running a tune or elevated boost, replacing the plastic charge pipe is a prerequisite before adding power.

Does this fit the E-chassis X1, X5, and X6 as well as the 135i and 335i?

Yes. The MMX BMW N55 charge pipe kit fits the E82/E88 135i (2010-2013), E90/E91/E92/E93 335i (2010-2013), E84 X1 xDrive35i (2012-2015), E70 X5 xDrive35i (2010-2013), and E71 X6 xDrive35i (2010-2014) — all E-chassis N55-equipped models.

Is this the same as the F-chassis N55 charge pipe?

No. The E-chassis and F-chassis N55 charge pipes are different parts with different routing and connection points. This kit is for E-chassis models only. F-chassis N55 owners (M135i, M235i, 335i F30, etc.) require the separate MMX F-chassis N55 charge pipe kit.

How difficult is installation?

Level-2 install difficulty. The charge pipe is a direct replacement for the factory unit using the same connection points and all included hardware. No cutting, drilling, or permanent modification is required. The installation is fully reversible.

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Description

MMX Charge Pipe Kit for Exx BMW 135i, 335i, X1, X5, and X6 (N55 Engine)

BMW N55 charge pipe kit from MMX Performance for the E-chassis 135i, 335i, X1 xDrive35i, X5 xDrive35i, and X6 xDrive35i is a high-flow aluminum replacement for the factory plastic charge pipe a component that is a documented weak point on the N55 at both stock and elevated boost levels. The OEM plastic pipe is prone to cracking, splitting, or blowing off at the throttle body connection under sustained boost pressure, causing boost leaks, limp mode, and potential engine protection events. The MMX unit eliminates that failure risk with smooth-bore, mandrel-bent aluminum construction that holds its shape under elevated boost and vacuum cycling, while delivering a cleaner airflow path from the intercooler to the throttle body. Precision connections ensure a leak-free, direct fit using the factory hardware; the pipe is finished in a durable crinkle black coating with a laser-etched MMX logo. The complete kit includes all seals and hardware required for a fully reversible installation with no cutting or modifications needed.

Features

High-flow aluminum construction; eliminates OEM plastic failure risk
Smooth-bore, mandrel-bent pipework for unrestricted airflow
Withstands elevated boost pressures — suited to stock and tuned N55 applications
Precision leak-free connections using factory hardware
Durable crinkle black finish with laser-etched MMX logo
Direct OEM replacement; no cutting or modifications required
Fully reversible installation
Complete kit including all seals and hardware

Applications

BMW 135i: E82, E88 | 2010-2013
BMW 335i: E90, E91, E92, E93 | 2010-2013
BMW X1 xDrive35i: E84 | 2012-2015
BMW X5 xDrive35i: E70 | 2010-2013
BMW X6 xDrive35i: E71 | 2010-2014

Notes

Compatible with N55 engines only. Does not fit N54, B58, or other engine variants
This is the E-chassis version. For F-chassis N55 models, see the MMX F-chassis N55 charge pipe kit
Sold as a complete kit including all seals and hardware

Frequently Asked Questions

Why does the BMW N55 charge pipe need replacing on E-chassis models? The factory BMW N55 charge pipe on E-chassis models is made from plastic and is a known failure point at both stock and elevated boost levels. It is prone to cracking or splitting under sustained boost pressure, causing boost leaks, limp mode, and potential engine protection events. The MMX aluminum N55 charge pipe eliminates that failure risk with a rigid, smooth-bore unit that holds its shape under sustained boost and vacuum cycling.
Is this suitable for a tuned N55 or stock only? Both. The MMX BMW N55 charge pipe is a worthwhile reliability upgrade even at stock boost levels the OEM plastic unit is marginal from the factory. For any E-chassis N55 running a tune or elevated boost, replacing the plastic charge pipe is a prerequisite before adding power.
Does this fit the E-chassis X1, X5, and X6 as well as the 135i and 335i? Yes. The MMX BMW N55 charge pipe kit fits the E82/E88 135i (2010-2013), E90/E91/E92/E93 335i (2010-2013), E84 X1 xDrive35i (2012-2015), E70 X5 xDrive35i (2010-2013), and E71 X6 xDrive35i (2010-2014) all E-chassis N55-equipped models.
Is this the same as the F-chassis N55 charge pipe? No. The E-chassis and F-chassis N55 charge pipes are different parts with different routing and connection points. This kit is for E-chassis models only. F-chassis N55 owners (M135i, M235i, 335i F30, etc.) require the separate MMX F-chassis N55 charge pipe kit.
How difficult is installation? Level-2 install difficulty. The charge pipe is a direct replacement for the factory unit using the same connection points and all included hardware. No cutting, drilling, or permanent modification is required. The installation is fully reversible.

About MMX Performance

MMX Performance is a UK-based specialist in performance parts for BMW and MINI vehicles, crafting high-quality upgrades that blend precision engineering, rigorous testing, and motorsport heritage. Driven by enthusiast culture, MMX designs its products in the UK and puts them through track validation to ensure durability, fitment accuracy, and on-road performance. Their catalog spans drivetrain components, spacers, hardware, and chassis enhancements, all tailored to elevate both the driving experience and visual appeal of BMW and MINI models.

Additional Information

The Bulletproof Automotive website contains many thousands of products purchased in multiple different currencies. All of the prices are entered manually and accurately at the time of entry. Due to the consistently fluctuating international exchange rates, at times prices may not be able to be honored at their original intended rate. We apologize for any inconvenience this may cause, unfortunately our website is unable to compensate dynamically for what can at times be volatile changes in the cost of items due to currency values fluctuating, changes in prices from suppliers, changes in shipping and import duties, and other factors. Rest assured that any order you place on line will be at zero risk to you in this area. If in the event your order cannot be fulfilled at the original intended website price we will offer you a 100% refund, no questions asked. We will continue to do our best to maintain updated prices and we will always continue to offer our price match guarantees as well to ensure our prices are always the best for you. In short, prices may change without notice. It is always advised to give us a call prior to placing your order online to confirm availability and to confirm current pricing.

Shipping Policy

Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions here.

BP Pricing Difference

We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well. For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at sales@bulletproofautomotive.com with any inquiries.

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MMX Charge Pipe Kit for Exx BMW 135i, 335i, X1, X5, and X6 (with N55 engine) [MMR02-0102]

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MMX Charge Pipe Kit for Exx BMW 135i, 335i, X1, X5, and X6 (N55 Engine)

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Frequently Asked Questions

About MMX Performance

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