BMW N55 Stage 3 PWG Turbocharger Upgrade
Performance turbo upgrade for select BMW N55 pneumatic wastegate applications. Designed for enthusiasts building a higher-output N55 combination with upgraded compressor and turbine components and a high-flow stainless steel turbo manifold.
Pneumatic Wastegate Application
Performance Turbo Upgrade
Point-Milled Wheel
Mar-M 246
XS-POWER BMW N55 Stage 3 PWG Turbo Upgrade
Take your BMW N55 performance build to the next level with the XS-POWER Stage 3 PWG Turbocharger Upgrade. This upgraded turbo system is designed for select BMW N55 engines equipped with the pneumatic wastegate (PWG) configuration.
The Stage 3 combination features an upgraded 7+7 point-milled compressor wheel, 9-blade Mar-M 246 turbine wheel, upgraded thrust-bearing system, improved oiling and bearing housing, and a high-flow stainless steel turbo manifold.
This turbocharger is intended for performance-oriented N55 builds where increased airflow, responsive boost characteristics and additional power capability are required beyond the factory turbocharger.
Stage 3 Performance
- Designed for builds targeting up to approximately 600 WHP when used with the appropriate supporting modifications, fuel, tuning and engine combination.
- Upgraded turbocharger configuration designed for increased airflow compared with the factory N55 turbocharger.
- Performance-oriented compressor and turbine wheel combination.
- High-flow stainless steel turbo manifold.
- Designed for responsive spool and strong mid-range performance.
- Intended for properly tuned performance applications.
Upgraded Turbo Components
| Turbo Stage | Stage 3 |
| Engine Platform | BMW N55 |
| Wastegate Type | PWG - Pneumatic Wastegate |
| Compressor Wheel | 7+7 Point-Milled Compressor Wheel |
| Compressor Design | Performance / Anti-Surge Oriented Design |
| Turbine Wheel | 9-Blade Mar-M 246 |
| Bearing System | Upgraded Thrust Bearing System |
| Oiling | Improved Oiling System / Bearing Housing |
| Turbo Manifold | High-Flow Stainless Steel |
| Power Capability | Up to approximately 600 WHP depending on complete vehicle setup |
9-Blade Mar-M 246 Turbine Wheel
The upgraded 9-blade Mar-M 246 turbine wheel is part of the Stage 3 airflow package and is designed for performance turbocharger operation. The turbine configuration works with the upgraded compressor side to support increased airflow in modified N55 applications.
7+7 Point-Milled Compressor Wheel
The 7+7 point-milled compressor wheel provides the upgraded compressor side of this Stage 3 N55 turbocharger. Its performance-oriented design is intended to support the additional airflow requirements of tuned, higher-output N55 engines.
BMW N55 PWG Fitment
Designed for select BMW N55 PWG applications. Potential applications include N55-powered versions of:
- BMW 135i
- BMW 335i
- BMW 435i
- BMW 535i
- BMW 640i
- BMW 740i / 740Li
- BMW M235i
- BMW M2 with N55 engine
- BMW X3 35i
- BMW X4 35i
- BMW X5 35i
- BMW X6 35i
BMW used different N55 turbocharger and wastegate configurations depending on model, chassis and production date. This listing is for PWG - pneumatic wastegate applications only. Do not purchase solely by vehicle model name. Verify the original turbocharger, wastegate configuration and connections before ordering.
Installation & Supporting Modifications
The turbocharger is designed around the appropriate N55 PWG application and factory-style connection locations. Exact compatibility must be verified before installation.
- Professional installation is strongly recommended.
- Performance ECU tuning is required.
- Supporting fuel-system upgrades may be required depending on the desired power level and fuel.
- Proper intercooling, intake and exhaust configuration should be selected for the intended power level.
- Oil and coolant lines must be inspected and properly serviced during installation.
- Always prime the turbocharger oiling system before initial startup.
PWG vs. EWG - Verify Before Ordering
This product is specifically intended for the PWG - Pneumatic Wastegate version of the BMW N55 turbo system.
Later N55 applications may use an EWG - Electronic Wastegate turbocharger configuration. PWG and EWG turbo systems should not be assumed interchangeable.
Verify the turbocharger and wastegate configuration installed on your vehicle before ordering.
Package Contents
1 x XS-POWER BMW N55 Stage 3 PWG Turbocharger Assembly
Package contents should be verified against product photographs and the current listing before installation.
BMW N55 Stage 3 Turbo FAQ
Is this turbo for an N55 engine?
Yes. This turbocharger is designed for select BMW N55 applications using the PWG pneumatic wastegate configuration.
Is this the PWG or EWG version?
This listing is for the PWG version. Verify your original turbo and wastegate configuration before ordering.
Can this turbo support 600 WHP?
The Stage 3 turbo is intended for builds targeting up to approximately 600 WHP. Actual output depends on the complete engine combination, fuel system, boost, tuning and supporting modifications.
Does this turbo require tuning?
Yes. Appropriate performance tuning is required for an upgraded turbocharger application.
Will this fit every BMW with an N55 engine?
No. BMW N55 applications use different turbo and wastegate configurations. Vehicle model, production date and original turbo configuration must be verified before purchase.
Is professional installation recommended?
Yes. Turbocharger installation should be performed by a qualified technician familiar with BMW N55 turbo systems.
BMW N55 PWG Stage 3 Performance Turbocharger
The XS-POWER BMW N55 Stage 3 PWG turbocharger is an upgraded performance turbo solution for select N55-powered BMW vehicles. It combines an upgraded 7+7 point-milled compressor wheel, 9-blade Mar-M 246 turbine wheel, upgraded bearing components and a high-flow stainless steel turbo manifold for performance N55 builds.
This N55 PWG turbo upgrade is relevant for enthusiasts searching for a BMW N55 Stage 3 turbo, BMW 135i turbo upgrade, BMW 335i turbo upgrade, BMW 435i turbo, BMW 535i N55 turbo, M235i N55 turbo, N55 big turbo, PWG turbocharger or higher-output BMW N55 performance turbo system.
XS-POWER Performance
Performance turbochargers, turbo kits, manifolds, headers, exhaust components, intercooler piping and turbo accessories for European, Japanese and American performance vehicles.
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