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MuchBoost B58 Upgraded Turbocharger with a Custom Billet Compressor Wheel 6+6 or 7+7 Blades and a High-Flow 9 Blades Turbine Wheel. It is based on an original Bosch/Mahle Turbocharger, which means that the installation is 100%P&P. The turbocharger is meant to work with i.a. BMW M140i and M240i with the B58 326-340HP engines.

The turbo delivers up to 199% power (324 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.

We have developed 2 modification options that allow you to reach anywhere from 600HP to 650HP.

MuchBoost B58 600

Upgraded turbocharger with an estimated 600HP at the crank. The list of modifications:

  • Fast spool thanks to Bigger Custom Billet Compressor Wheel,
  • Enlarged High-Flow 9 Blades Turbine Wheel,
  • Precisely machined compressor and turbine housings + seal plate,
  • High air-fuel ratio including high peak torque achieved at low engine speeds,
  • Genuine Bosch/Mahle compressor housing,
  • Genuine Bosch/Mahle exhaust manifold,
  • Genuine Bosch/Mahle bearing housing,
  • Original Bosch/Mahle actuator,
  • 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.

MuchBoost B58 650

Upgraded turbocharger with an estimated potential of 650HP at the crank. Modifications compared to the 600 option are the same, except:

  • Larger Billet Compressor Wheel 7+7 Blades,
  • Extended Inlet.
Other significant modifications

The turbo is meant to work with ~600HP-650HP. In order to reach that level of power, you need to adjust your fuel, exhaust, and cooling systems as well.

Example project

A BMW M140i with this turbo managed to produce 646HP and 880Nm of torque. List of upgrades:

  • Vrsf Catless dp – remus mid-pipe – mperf rear muffler
  • Tu pump
  • Oem hot climate intake mod
  • Silicone inlet
  • Osprey turbo inlet
  • Ftp chargepipe
  • M perf LSD
  • Snowperformance methkit – Portmeth 6x360cc nozzles + charge pipe meth

Dyno graph below:

Another great project from one of our clients. They managed to produce 661HP and 819Nm of torque with our 650HP turbo. The car was also equipped with:

  • Custom ECU tune
  • Stage 3 gearbox tune
  • ST2 High-pressure pump
  • Performance Oil Catch Can
  • Etanolsensor
  • Catless downpipe

Please take a look at the dyno graph below.

You might also consider

B58 BMW De-Cat/Sport-Cat Downpipe M240i, M140i, 340i, 440i, 540i, 640i, 740i


A set of gaskets is included with the turbo!


Cars
BMW M140 i (F20/F21) 340HP
BMW M240 i (F22/F23) 340HP
BMW 340i (F30/F31) 326HP
BMW 340i GT (F34) 326HP
BMW 440 i (F32/F33) 326HP
BMW 440 i GT (F36) 326HP
BMW 540 i (G30) 340HP
BMW 740 i (G11/G12) 326HP


Factory numbers

11658637041
7643147

Engines

B58B30
B58Tu


OEM number

11652397070


(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. The warranty is 12 months without the limit of mileage.
    2. We need about 7 working days to perform and ship the upgraded turbocharger. The parcels in European Union are shipped via DPD for just 25,00 EURO. DHL Express (airplane shipping)  is used for orders besides the EU, it costs 99,00 EURO. The average delivery time is 2-4 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.

POWER RANGE

600HP, 650HP

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