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Mark Hendrikx - Automotive engineer at Mosselman

Expert's advice:

The Mosselman Upgrade Turbocharger Set (MSL65-80) for the S55 engine combines a huge boost in performance with an unmatched spool. By increasing the airflow and reducing backpressure, these turbos delivered beyond expectation with power levels that literally maxed out the dyno, still with proven reliability. Depending on the modifications done to the car and fuel type, this turbo set can deliver up to 800hp!*

Based on brand NEW MHI turbos, but with several components of our own design to ensure the highest quality and reliability. Thanks to their OEM origins, the set is easy to install and requires no additional modification. The set comes with a limited 1-year warranty.

Mark Hendrikx - Automotive engineer at Mosselman

  • Mosselman's advantages:
  • BMW & Mini specialist
  • High-end performance parts
  • 40 years' experience
  • Shipping in 24 hours
  • Made in Holland
Mosselman S55 Stage 2 Turbocharger Set

Mosselman S55 Stage 2 Turbocharger Set

Available for the BMW F8x (M2 Competition, M3 and M4)

  • Performance up to 800 hp *
  • Based on NEW MHI S55 Turbochargers
  • Billet aerospace grade aluminum compressor wheel
  • Latest design oversized MHI turbine wheel with "slim nose"
  • High precision CNC machined housings
  • VSR balanced
  • Titanium shaft nut
  • Manufactured In-House at the Mosselman HQ, located in The Netherlands
  • Plug and Play installation
  • An extremely low core charge

*Depending on modifications and fuel type.

Do you have a question?

Please take a look at our FAQ for the most commonly-asked questions, or feel free to contact us.

Contact us

Yes, all Mosselman Turbocharger upgrades are based on brand NEW OEM/MHI turbos!

The core charge is a mandatory deposit when buying a Mosselman turbo upgrade. After you received the upgraded turbo, you have the option to send your old turbo back to us. We will refund the core charge if the original turbo is still in a good and usable shape. Or you can keep your old turbo! That allows you to bring the car back to its original state when needed, or sell it locally for a better price. 
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Mosselman Turbo Systems offers an extremely low core charge on our turbo upgrades compared to other companies. 

Yes, thanks to their OEM origin the Mosselman upgraded turbochargers are plug-and-play. They come as a complete set, including the actuators. 

Technical details

Depending on the modifications done to the car and fuel quality, this turbo set can deliver up to 800hp!

Car Upgrades Performance Dyno Sheet
BMW M4 MSL 620 Package (ECU Remap, S55 Turbo Upgrade, Catless Downpipes, Catback Exhaust System, MSL Oil Thermostat) 625,3 hp & 793 Nm View Dyno Sheet
BMW M3 ECU Remap, S55 Turbo Upgrade, Methanol Injection, Port Injection Kit, Upgraded Chargecooler + Heat Exchanger,  Catless Downpipes, Catback Exhaust System, MSL Oil Thermostat 786,5 hp & 949 Nm View DYNO Sheet