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  • 1Z AHU ALE Hybrid Turbo Upgrade 1.9TDI VW Golf MK3 / MK4, Passat B5, AUDI A4 B5, A6 C4
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MuchBoost 1.9TDI 1Z AHU ALE Upgraded Turbocharger with a Custom Billet Compressor Wheel 6+6 Blades. It is based on an original Garrett or KKK turbocharger which means that the installation is 100%P&P. The turbocharger is meant to work with VAG vehicles with a 1.9TDI 90HP engine.

The turbo delivers up to 178% power (70 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 130HP to 160HP.

MuchBoost 1Z AHU ALE 130

Upgraded turbocharger with an estimated ~130HP at the crank. List of modifications:

  • Precisely machined seal plates and compressor housing,
  • Genuine Garrett/KKK compressor housing,
  • Genuine Garrett/KKK bearing housing,
  • Genuine Garrett/KKK exhaust manifold,
  • Original actuator
  • More efficient and larger Billet Compressor Wheel 6+6 Blades,
  • 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 1Z AHU ALE 160

Upgraded turbocharger with an estimated potential of ~160HP at the crank. Modifications compared to the 130 option are the same except:

  • Billet Compressor Wheel 7+7 Blades,
  • Larger 12 blades Turbine Wheel,
  • Bigger Compressor Housing,
  • 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.

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


Ford Galaxy 1.9TDI I 90HP
Audi A4 1.9TDI B5 90HP
Audi A6 1.9TDI C4 90HP
Seat Alhambra 1.9TDI I 90HP
Seat Cordoba 1.9TDI I 90HP
Seat Ibiza 1.9TDI II 90HP
Seat Toledo 1.9TDI I 90HP
VW Caddy 1.9TDI II 90HP
VW Golf 1.9TDI mk3 90HP
VW Golf 1.9TDI mk4 90HP
VW Jetta 1.9TDI III 90HP
VW Passat 1.9TDI B5 90HP
VW Polo 1.9TDI III 90HP
VW Sharan 1.9TDI I 90HP
VW Vento 1.9TDI 90HP

Factory numbers




OEM number


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. 


130HP, 160HP

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