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MuchBoost 1.8 20V K04 Upgraded Turbocharger with a Custom Billet Compressor Wheel, and Enlarged Turbine Wheel. It is based on an original KKK K04, which means that the installation is 100%P&P. The turbocharger is meant to work with cars using the 1.8T 20V engine.

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 300HP to 330HP.

MuchBoost 1.8T 20V 300

Upgraded turbocharger with an estimated ~300HP at the crank. Listo of modifications:

  • Precisely machined seal plates 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,
  • Enlarged genuine Turbine Wheel,
  • 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.
MuchBoost 1.8T K04 330

Upgraded turbocharger with an estimated potential of ~330HP at the crank. Modifications compared to the 300 option are the same except:

  • Bigger Compressor Billet Wheel
  • Larger High-Flow 9 blades Turbine Wheel
  • Genuine reinforced actuator,
  • Precisely machined exhaust housing.
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.

Example project

One of our clients managed to produce 296HP and 400Nm at the crank. The car was also equipped with:

  • Free-flow air intake
  • Full 63.5mm exhaust
  • FMIC
  • Forge wastegate
  • N/A cams
  • Aeromotive FPR
  • 440cc injectors
  • S3 internals
  • Walbro 255lpfp

Dyno graph below.

 

You might also consider

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

1.8T De-Cat Downpipe KKK K04 Audi S3 8L, Audi TT 8N, Seat Leon Cupra I


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


Cars

Audi S3 1,8T, 210HP
Audi TT1,8T, 210HP
Audi S3 1.8T, 225HP
Audi TT 1.8T, 225HP
Audi TT 1.8T, 240HP
Seat Leon 1.8T Cupra R 224HP


Factory numbers

53049700020
53049700022
53049700023
53041015078
53049880023
53049880022
53049880020
53047100507
53049500011

Engines

BAM, BFV, APY, AMK, APX


OEM number

06A145704M
06A145704MX
06A145704MV
06A145702
06A145702X
06A145702V
06A145701M
06A145701MX
06A145701MV
06A145704P
06A145704PX
06A145704PV
06A145704Q
06A145704QX
06A145704QV
06A145702F
06A145702FX
06A145702FV


(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

300HP, 330HP

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