MMX Chargepipe Kit (Turbo side) | BMW F2x F3x | N55
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MMX Turbo-Side Charge Pipe – BMW F2X & F3X N55
Improve boost reliability and airflow on your N55-powered BMW with the MMX Turbo-Side Charge Pipe.
Designed for BMW F-Series models including the M135i, M235i, 335i and 435i, as well as the original BMW F87 M2, this lightweight aluminium charge pipe replaces the factory turbo-side pipework with a stronger, smooth-bore alternative.
The original plastic pipework can become increasingly vulnerable as boost pressure rises, making upgraded charge pipes an important supporting modification for tuned N55 engines.
The MMX Turbo-Side Charge Pipe is designed to reduce this weak point while also improving airflow, throttle response and overall durability.
Why Upgrade the N55 Turbo-Side Charge Pipe?
The factory N55 charge-air system uses plastic pipework designed primarily around standard engine output.
As boost pressure and engine performance increase, these components can become prone to:
- Cracking
- Splitting
- Boost leaks
- Deformation
- Sudden loss of performance
MMX replaces the factory pipe with a lightweight aluminium alternative designed to remain reliable even at significantly increased power outputs.
Key Features
- MMX Turbo-Side Charge Pipe
- Designed for BMW N55 engines
- Lightweight aluminium construction
- Replaces the factory turbo-side pipework
- Smooth-bore mandrel-bent design
- Improved airflow
- Helps prevent boost leaks
- Improved reliability
- Resists deformation under pressure or vacuum
- Improved throttle response
- Supports increased power output
- Included seals for accurate connections
- Direct OEM replacement
- No permanent modifications required
- Fully reversible
- Durable crinkle-black finish
- Laser-etched MMX branding
- Designed to complement the MMX Intake-Side Charge Pipe
- MMX part number MMR02-0502
Stronger Than the Factory Pipework
One of the main reasons to upgrade the N55 chargepipe system is reliability.
As boost pressure rises, the factory plastic components can become more vulnerable to cracking or splitting.
A failure in the charge-air system can result in:
- Boost pressure loss
- Poor engine response
- Reduced power
- Engine warning lights
- Limp mode
The MMX aluminium replacement removes this plastic weak point and provides a more robust solution for standard and tuned vehicles.
Smooth-Bore Mandrel-Bent Construction
MMX uses smooth-bore mandrel-bent aluminium pipework.
This provides a cleaner internal airflow path compared with the factory setup.
The smooth internal surface helps reduce turbulence and maintains a more consistent cross-section through the pipe.
Potential benefits include:
- Improved airflow
- Reduced restriction
- More consistent boost delivery
- Better throttle response
- Improved support for tuned engines
Resists Deformation Under Load
The rigid aluminium construction prevents the pipe from deforming under load or vacuum.
This helps maintain a consistent internal diameter regardless of engine demand.
For tuned N55 engines running increased boost, this provides an important improvement in both airflow consistency and reliability.
Improved Throttle Response
By reducing restriction and preventing deformation, the MMX charge pipe can help improve throttle response.
A more consistent airflow path allows the turbocharging system to operate more efficiently, particularly as airflow and boost demands increase.
This makes the pipe a useful supporting modification for fast-road and tuned N55 builds.
Supports Increased Power Output
The MMX Turbo-Side Charge Pipe is not primarily a standalone power modification.
Its main role is to improve reliability and airflow within the charge-air system.
However, when combined with tuning and supporting upgrades, reducing restriction and preventing boost leaks can help the engine deliver its intended output more consistently.
Designed for Tuned N55 Engines
The turbo-side charge pipe is particularly worthwhile for:
- Stage 1 tuned cars
- Stage 2 builds
- Increased boost setups
- Hybrid turbo applications
- Fast-road cars
- Track-day vehicles
- Higher-output N55 engines
Even on a standard engine, replacing the factory plastic pipework can be considered a preventative reliability upgrade.
Recommended with the MMX Intake-Side Charge Pipe
MMX highly recommends fitting the Turbo-Side Charge Pipe alongside its matching Intake-Side Charge Pipe.
The matching MMX Intake-Side Charge Pipe is:
MMR02-0501
Combining both products removes more of the original plastic pipework and provides a more complete N55 charge-air system upgrade.
Benefits of fitting both include:
- Improved boost reliability
- Reduced plastic pipework
- Smoother airflow
- Matching construction
- Matching engine-bay appearance
- Better support for increased boost
Turbo-Side vs Intake-Side Charge Pipe
The two MMX N55 chargepipe products upgrade different sections of the forced-induction system.
Turbo-Side Charge Pipe – MMR02-0502
Upgrades the turbo-side charge-air pipework and focuses on improving the pressurised airflow path around the turbo/intercooler side of the system.
Intake-Side Charge Pipe – MMR02-0501
Replaces the intake-side chargepipe and also includes a 1/8-inch auxiliary bung for water or methanol injection.
For the most complete solution, MMX recommends installing both.
Ideal with an Upgraded Intercooler
The MMX Turbo-Side Charge Pipe works particularly well as part of a larger N55 cooling and airflow package.
A typical upgrade path may include:
- Performance intercooler
- MMX Turbo-Side Charge Pipe
- MMX Intake-Side Charge Pipe
- High-flow panel filter
- Performance intake
- ECU tuning
This addresses several of the common airflow and reliability restrictions within the factory charge-air system.
Direct OEM Replacement
The MMX Turbo-Side Charge Pipe is designed as a direct replacement for the corresponding factory pipework.
No cutting, welding or permanent vehicle modification is required.
The supplied seals help provide accurate and consistent connections throughout the system.
Fully Reversible
Because the installation does not require permanent modification, the original BMW pipework can be refitted later if required.
This makes the MMX upgrade suitable for both road and performance-focused vehicles.
Crinkle-Black Finish
The pipe is finished in a durable crinkle-black coating with laser-etched MMX branding.
This provides:
- Surface protection
- Durable engine-bay finish
- OEM-style appearance
- Subtle performance styling
The result is a component that improves both function and presentation.
BMW F20 / F21 M135i
The MMX Turbo-Side Charge Pipe is compatible with N55-powered BMW F20 and F21 M135i models.
For tuned M135i builds, replacing the factory pipework is a sensible reliability-focused supporting upgrade.
BMW F22 / F23 M235i
The pipe is suitable for the BMW F22 M235i Coupe and F23 M235i Convertible equipped with the N55 engine.
It can be used as a standalone upgrade or combined with the matching MMX Intake-Side Charge Pipe.
BMW F30 / F31 335i
The MMX Turbo-Side Charge Pipe is compatible with N55-powered BMW F30 335i and F31 335i Touring models.
For fast-road and tuned 335i builds, it helps remove one of the weaker plastic sections from the charge-air system.
BMW F32 / F33 435i
The BMW F32 435i Coupe and F33 435i Convertible with the N55 engine are also supported.
The same aluminium construction improves reliability and airflow compared with the original plastic pipework.
BMW F87 M2
The MMX Turbo-Side Charge Pipe is also compatible with the original N55-powered BMW F87 M2.
For tuned or track-driven F87 M2 builds, it provides a worthwhile improvement in charge-air reliability.
Compatibility
Designed for applicable N55-powered BMW F-Series models including:
- BMW F20 M135i
- BMW F21 M135i
- BMW F22 M235i
- BMW F23 M235i Convertible
- BMW F30 335i
- BMW F31 335i Touring
- BMW F32 435i
- BMW F33 435i Convertible
- BMW F87 M2
Engine:
- BMW N55
MMX lists fitment across F20, F21, F22, F23, F30, F31, F32, F33 and F87 chassis from 2011–2020.
Please confirm exact vehicle and engine specification before ordering.
What's Included?
The MMX N55 Turbo-Side Charge Pipe Kit includes:
- MMX aluminium turbo-side charge pipe
- Required connection seals
- Installation hardware
Supplied as a complete direct-replacement turbo-side kit.
Explore More BMW N55 Performance Parts
Looking to improve your N55-powered BMW further? Explore our range of intake, cooling and engine upgrades.
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BMW F22 / F23 M235i Parts – Browse N55 engine and performance products for the BMW M235i.
BMW F3X Parts – Explore intake and engine upgrades for the BMW 3/4 Series.
BMW F87 M2 Parts – Shop engine, intake and performance upgrades for the BMW F87 M2.
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