Why does the factory BMW N55 charge pipe fail?

The OEM charge pipes on the N55 are plastic and weaken progressively through heat cycles. Under elevated boost — a common condition on the N55, which responds readily to tuning — they are prone to cracking or splitting, causing a boost leak that produces power loss, poor throttle response, or full limp mode. The MMX BMW N55 charge pipe intake kit replaces them with aluminum, permanently eliminating that failure mode.

What is the 1/8 inch NPT bung for on the BMW N55 charge pipe?

The bung allows integration of a methanol or water injection nozzle directly into the charge pipe. If injection is not being run, the bung ships plugged and can be left sealed without affecting the kit's function.

Does this BMW N55 charge pipe fit the F87 M2 as well as the 335i and M135i?

Yes. The BMW N55 charge pipe intake kit fits the F87 M2 (2016-2018 N55 base model), F20/F21 M135i, F22/F23 M235i, F30/F31/F34 335i, and F32/F33/F36 435i — all N55-powered F-chassis variants.

Do I need a tune to run the BMW N55 charge pipe?

No. The BMW N55 charge pipe works on stock and tuned cars alike. On a tuned car, fitting the aluminum charge pipe before increasing boost is one of the most important reliability precautions available, since the OE plastic becomes increasingly vulnerable as boost rises.

What is included in the BMW N55 charge pipe intake kit?

The kit includes two high-flow aluminum charge pipes with CNC leak-free connections, a silicone coupler hose, a replacement C-clip, jubilee clips, and an O-ring — everything needed for a direct-fit installation.

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Description

MMX Intake-Side Charge Pipe Kit for F-Chassis BMW M135i, M2, M235i, 335i, and 435i (N55)

BMW N55 charge pipe intake kit from MMX Performance replaces the failure-prone factory plastic intake-side charge pipes on N55-powered F-chassis BMWs covering the F20/F21 M135i, F87 M2, F22/F23 M235i, F30/F31/F34 335i, and F32/F33/F36 435i. The factory plastic charge pipes on the N55 are a known weak point under increased boost pressure, particularly on tuned cars where elevated boost makes cracking and splitting progressively more likely, causing boost leaks that range from reduced power and poor throttle response to full limp mode. The MMX BMW N55 charge pipe intake kit permanently eliminates that failure mode with lightweight, high-strength aluminum construction that withstands elevated boost without deformation or cracking; a smooth internal bore reduces turbulence over the OEM design, improving airflow and supporting sharper throttle response and increased power potential. CNC-machined hose ends deliver a secure, leak-free connection; a built-in 1/8 inch NPT bung allows easy integration of methanol or water injection systems, shipped plugged if not in use. Finished in a durable crinkle black powder coat with laser-etched MMX logo detailing. All necessary hardware is included for a direct-fit installation.

Features

Lightweight high-strength aluminum permanently eliminates the OEM plastic failure mode
Smooth internal bore for improved airflow and sharper throttle response
CNC-machined hose ends for a precise, leak-free fit
Integrated 1/8 inch NPT bung for methanol or water injection
Durable crinkle black powder coat with laser-etched MMX logo
Withstands increased boost pressure without deformation or cracking
Direct-fit design all hardware included

What’s Included

Two replacement high-flow aluminum charge pipes with CNC leak-free connections
Silicone coupler hose
Replacement C-clip
Jubilee clips
O-ring

Applications

BMW 335i: F30, F31, F34 | 2012-2015
BMW 435i: F32, F33, F36 | 2013-2016
BMW M135i: F20, F21 | 2012-2016
BMW M2: F87 | 2016-2018
BMW M235i: F22, F23 | 2014-2016

Notes

N55 engine only. Confirm your engine code before ordering.

Frequently Asked Questions

Why does the factory BMW N55 charge pipe fail? The OEM charge pipes on the N55 are plastic and weaken progressively through heat cycles. Under elevated boost a common condition on the N55, which responds readily to tuning they are prone to cracking or splitting, causing a boost leak that produces power loss, poor throttle response, or full limp mode. The MMX BMW N55 charge pipe intake kit replaces them with aluminum, permanently eliminating that failure mode.
What is the 1/8 inch NPT bung for on the BMW N55 charge pipe? The bung allows integration of a methanol or water injection nozzle directly into the charge pipe. If injection is not being run, the bung ships plugged and can be left sealed without affecting the kit’s function.
Does this BMW N55 charge pipe fit the F87 M2 as well as the 335i and M135i? Yes. The BMW N55 charge pipe intake kit fits the F87 M2 (2016-2018 N55 base model), F20/F21 M135i, F22/F23 M235i, F30/F31/F34 335i, and F32/F33/F36 435i all N55-powered F-chassis variants.
Do I need a tune to run the BMW N55 charge pipe? No. The BMW N55 charge pipe works on stock and tuned cars alike. On a tuned car, fitting the aluminum charge pipe before increasing boost is one of the most important reliability precautions available, since the OE plastic becomes increasingly vulnerable as boost rises.
What is included in the BMW N55 charge pipe intake kit? The kit includes two high-flow aluminum charge pipes with CNC leak-free connections, a silicone coupler hose, a replacement C-clip, jubilee clips, and an O-ring everything needed for a direct-fit installation.

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, often putting 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 Intake-Side Charge Pipe Kit for Fxx BMW M135i, M2, M235i, 335i, and 435i (with N55 engine) [MMR02-0501A/MMR02-0501M]

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MMX Intake-Side Charge Pipe Kit for F-Chassis BMW M135i, M2, M235i, 335i, and 435i (N55)

Features

What’s Included

Applications

Notes

Frequently Asked Questions

About MMX Performance

Reviews