MuchBoost 1.8 20V K03 Upgraded Turbocharger with a Custom Billet Compressor Wheel and Enlarged Turbine Wheel. It is based on an original KKK K03, which means that the installation is 100%P&P. The turbocharger is meant to work with cars using the 1.8T 20V transverse or longitudinal engines.

The turbo delivers up to 137% power (120 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 250HP to 300HP.

MuchBoost 1.8T K03 250

Upgraded turbocharger with an estimated ~250HP at the crank. List of modifications:

• Precisely machined seal plate and compressor housing,
• Genuine KKK compressor housing,
• Genuine KKK bearing housing,
• Genuine KKK 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,
• 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 1.8T K03 300

Upgraded turbocharger with an estimated potential of ~250HP at the crank. Modifications compared to the 300 option are the same except:

• Bigger Compressor Billet Wheel 7+7 Blades*,
• Larger High-Flow 9 blades Turbine Wheel,
• Genuine reinforced actuator,
• Precisely machined Exhaust housing

* Please realize, that the 300HP option requires a bigger diameter of the intake pipe.

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 may also like

1.8T De-Cat Downpipe KKK K03 for Audi A3 8L, VW Golf MK4, Seat Leon I, Skoda Octavia I

Hard Pipe Inlet Kit for 1.8T 20V Audi S3 8L/A3 8L/A4 B5, Audi TT 8N, Seat Leon Cupra I

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 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.