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MuchBoost N55 Upgraded Turbocharger with a Custom Billet Compressor Wheel 6+6 Blades, and Clipped and Lightened/High Flow 9 Blade Turbine Wheel. It is based on an original Turbocharger, which means that the installation is 100%P&P. The turbocharger is meant to work with BMW 535i, 640i, M135i, M2, M235i, X3 35i, X4 35i, X4 M40i, X5 35i, X6 35i with the N55 306-370 HP engines.

The turbo delivers up to 179% power (246 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 3 modification options that allow you to reach anywhere from 460HP to 550HP.

MuchBoost N55 460

Upgraded turbocharger with an estimated ~460HP at the crank. List of modifications:

  • Precisely machined seal plates and compressor housing,
  • Genuine compressor housing,
  • Genuine bearing housing,
  • Genuine exhaust manifold,
  • Upgraded journal bearings system that allows the turbo to hold more boost,
  • More efficient and larger Billet Compressor Wheel 6+6 Blades,
  • Clipped and Lightened genuine Turbine Wheel,
  • Dynamically balanced,
  • Original DV,
  • 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 N55 530

Upgraded turbocharger with an estimated potential of ~530HP at the crank. Modifications compared to the 460 option are the same except:

  • Larger High-Flow 9 blades Turbine Wheel,
  • Larger Billet Compressor Wheel,
  • Precisely machined exhaust housing.
MuchBoost N55 550

Upgraded turbocharger with an estimated potential of ~550HP at the crank. Modifications compared to the 530 option are the same except:

  • Bigger Turbine Wheel,
  • Bigger Billet Compressor Wheel.
MuchBoost N55 580

Upgraded turbocharger with an estimated potential of ~580HP at the crank. Modifications compared to the 550 option are the same except:

  • Bigger Turbine Wheel,
  • Bigger Billet 8+0 Blades Compressor Wheel,
  • Added heat shield.
Other Significant Modifications

To fully utilize the potential of this hybrid turbo, we recommend upgrading i.a. fuel, exhaust, cooling systems, and the clutch. Individual ECU remapping is the foundation.

You might also consider

N55 BMW De-Cat/Sport Cat Downpipe 35ix E70/E71, BMW 535i/535ix F07/F11/F12, BMW 640i/640ix F06/F12/F13, BMW 740i/740ix F01LCI/F02LCI

N55 BMW De-cat Downpipe 135i/135ix F20/F21, BMW 235i/235ix/M2 F22/F23/F87, BMW 335i/335ix F30/F31/F34/F35, BMW 435i/435ix F32.


1500Nm N54, N55 Upgraded Clutch for BMW M2, 335i, 135i, Z4

Example project

One of our clients managed to produce 487HP at the wheels and 710Nm from their M2. The car had a custom ECU done and an xHP Flashtools TCU tune. It was also equipped with:

  • Dorch Engineering Stage 1 HPFP
  • Dinan Engineering N-Series Ignition Coils

Dyno graph below.


A set of gaskets is included with every option you choose!


BMW 135i E82/E88 306HP
BMW 335i E90/E91/E92/E93 306HP
BMW 335i F30/F31 306HP
BMW 335i GT F34 306HP
BMW 435i GC F36 306HP
BMW 435i F32/F33 306HP
BMW 535i GT F07 306HP
BMW 535i F10/F11 306HP
BMW 640i F06/F10/F12 320HP
BMW 640i F13 320HP
BMW M135i F20/F21 320HP
BMW M2 Coupe F87 370HP
BMW M235i F22 326HP
BMW X3 35i F25 306HP
BMW X4 35i F26 306HP
BMW X4 M40i F26 360HP
BMW X5 35iX E70 306HP
BMW X5 35i F15 306HP
BMW X6 35iX E71 306HP
BMW X6 35i F16 306HP

Factory numbers

1853 988 0010
1853 970 0010
1853 970 0009
1853 988 0004
1853 971 0004
1853 970 0004
1853 988 0005
1853 970 0005
1853 970 0001
1853 988 0007
1853 970 0007
1853 988 0003
1853 970 0003


N55, N55B30

OEM number


(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.

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


460HP, 530HP, 550HP, 580HP





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