MuchBoost 4.2FSI Upgraded Turbochargers with Enlarged Billet Compressor Wheels and Enlarged Turbine Wheels. They are based on genuine BorgWarner turbochargers, which means that the installation is 100% P&P. The turbochargers are meant to work with Audi RS6 C5 with the BCY 450-480HP engine.

The turbo delivers up to 146% of stock power (210 HP extra) which means it could be perfect for a faster daily driver, to gain some additional power.

Main Features

• The potential 660HP,
• Fast spool thanks to enlarged Billet Compressor Wheel 6+6 Blades,
• 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:

• Modified Genuine compressor housing,
• Precisely machined exhaust housing,
• Genuine exhaust manifold,
• Genuine bearing housing,
• Upgraded Journal bearing system that allows holding more boost,
• Reinforced actuator,
• Dynamically balanced,
• 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 ~660HP In order to reach that level of power, you need to adjust your fuel, exhaust, and cooling systems as well.

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