MuchBoost S58 Upgraded Turbochargers with a Custom Billet Compressor Wheel and a High-Flow 9 Blades Turbine Wheel. It is based on an original Mitsubishi Turbocharger, which means that the installation is 100%P&P. The turbocharger is meant to work with BMW M3, M3 Competition, M4, M4 Competiton, X3M, X3M Competition, X4M, and X4M Competiton with the S58 480-510HP engine.

The turbo delivers up to 187% power (420 extra HP) over the factory specs. It is a great choice for someone looking for a bit extra HP from their daily driver. MuchBoost turbo allows you to get more from your engine and enjoy it even more than you’ve been so far.

Main Features

• The potential ~900HP,
• Fast spool thanks to Custom Billet Compressor Wheel,
• High-Flow bigger 9 Blades Turbine Wheel,
• High air-fuel ratio including high peak torque achieved at low engine speeds,

Details on the construction of the turbo:

• Genuine Mitsubishi compressor housing,
• Genuine Mitsubishi exhaust manifold,
• Genuine Mitsubishi bearing housing,
• Original Mitsubishi actuator,
• Precisely machined exhaust & compressor housings + seal plate,
• Upgraded Journal bearing system that allows holding more boost,
• The compressor and turbine wheels are balanced separately, and then the whole core is high-speed balanced using VSR balancing machines at speeds similar to the level seen in the vehicle.

Other significant modifications

The turbo is meant to work with ~900HP In order to reach that level of power, you need to adjust your fuel, exhaust, and cooling systems as well.

Example project

One of our clients managed to produce 845HP and 1038Nm of torque. The car was also equipped with:

• MGmotorsport/MP-Tech Performance sport exhaust with sport cats,
• BMC air filters,
• Wagner Tuning Intercooler.

Please take a look at the dyno graph below:

A set of gaskets is included with the turbo!

(If your engine has a different code, please send us a message. We will verify it.)

Matters you should be aware of when placing your order.

1. 1. The warranty is 12 months without the limit of mileage.
   2. We need around 2 weeks to perform and ship the upgraded turbocharger. In some complicated cases, it may take up to 3 weeks. Please realize that the turbo upgrades require precision. Especially, the machining process takes a lot of time. We don`t cut the corners. Thank you for understanding. The parcels in the European Union are shipped via DPD for just 25,00 EURO. UPS is used for orders besides the EU, it costs 99,00 EURO and 49,00 to the UK (DHL). The average delivery time is 3-5 working days.
   3. Every parcel is fully insured.
   4. If you didn`t find the turbo you need, feel free to contact us. We are able to perform many more upgraded turbochargers than you can find on the site. Our development department works permanently on the new models.
   5. Do you have a workshop, are you an influencer or seller of tuning parts? We are open to cooperation by offering discounts and refunds.
   6. During placing your order, please provide information as follows:

• • the engine code,
  • the car model,
  • the stock power,
  • the VIN number

These details are helpful to make the turbo correctly.

* Just upgrade option means that we will modify your turbochargers once you sent them to us. The turbo can’t be cracked and must be genuine.

Complete turbos option is for those who want to buy a fully built turbo set ready to install in the car.