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  • Z28NET/Z28NEL/B284 Opel/Saab Hybrid Turbo Ugprade Opel Insignia, Signum, Vectra C, Saab 9-3, 9-5
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MuchBoost Z28NET/Z28NEL/B284 Upgraded Turbocharger with a Custom Billet Compressor Wheel and a High-Flow 9 Blades Turbine Wheel. It is based on an original Mitsubishi Turbocharger, which means that the installation is 100%P&P. The turbocharger is meant to work with Opel Signum, Vectra C, and Saab 9-3 II with the Z28NET/Z28NEL/B284 230-280HP engines.

The turbo delivers up to 195% power (220 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.

Main Features
  • The potential ~450HP,
  • Fast spool thanks to Custom Billet Compressor Wheel,
  • High-Flow bigger 9 Blades Turbine Wheel,
  • High air-fuel ratio including high peak torque achieved at low engine speeds,
Details on the construction of the turbo:
  • Genuine Mitsubishi compressor housing,
  • Genuine Mitsubishi exhaust manifold,
  • Genuine Mitsubishi bearing housing,
  • Original Mitsubishi actuator,
  • Precisely machined exhaust & compressor housings + seal plate,
  • Upgraded Journal bearing system that allows holding more boost,
  • 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 ~450HP 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 the turbo!

Cadillac SRX 2.8 V6 – 300HP
Opel Insignia 2.8 V6 – 260-325HP
Opel Signum 2.8 V6 – 230-250HP
Opel Vectra C 2.8 V6 – 230-280HP
Saab 9-5 2.8 V6 – 300HP
Saab 9-3 II 2.8 V6 – 250-280HP

Factory numbers



Z28NET, Z28NEL, B284

OEM number


(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.

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