MuchBoost N63 4.4 Upgraded Turbochargers with a Custom Billet Compressor Wheel and Enlarged Turbine Wheel. It is based on an original Garrett which means that the installation is 100%P&P. The turbochargers are meant to work with Alpina B5 F10/F11, B7 F01/F02, BMW 550i GT F07, 650i F12/F13, 750i F01/F02/F03/F04/G11/G12, M550i G30, X5 xDrive 50i E70, and X6 50iX E71 with N63B44/N63R 407-540HP engines.

The turbo delivers up to 211% (453HP extra) of power over the factory specs. It will make your car feel even faster and the power will be a lot more intense. 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 860HP,
• Fast spool thanks to enlarged Billet Compressor Wheel 6+6 Blades,
• Enlarged High Flow 9 blades Turbine Wheel,
• High air-fuel ratio including high peak torque achieved at low engine speeds.

Details on the construction of the turbo:

• Precisely machined seal plates, compressor & turbine housings,
• Genuine Garrett compressor housing,
• Genuine Garrett bearing housing,
• Genuine Garrett exhaust manifold,
• Upgraded journal bearings system that allows the turbo to hold more boost,
• More efficient and larger Billet Compressor Wheels,
• 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.

Extra upgrade option

There is also a Ceramic Ball Bearing Upgrade option available with this turbo. It provides a better spool and more low-end torque.

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.

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

(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 turbochargers. 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 set ready to install in the car.