MuchBoost G4KH Theta Upgraded Turbocharger with a Custom Billet Compressor Wheel Blades and a High-Flow Enlarged Turbine Wheel. It is based on an original MHI Turbocharger, which means that the installation is 100%P&P. The turbocharger is meant to work with Hyundai Santa Fe, Sonata, Kia Optima IV, and SportageIV with the G4KH Theta 240-245HP engines.

The turbo delivers up to 166% power (160 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 ~400HP,
• Fast spool thanks to Custom Billet Compressor Wheel,
• High-Flow Enlarged 9-Blade Turbine Wheel,
• High air-fuel ratio including high peak torque achieved at low engine speeds.

Details on the construction of the turbo:

• Genuine MHI compressor housing,
• Genuine MHI exhaust manifold,
• Genuine MHI bearing housing,
• Original MHI actuator,
• Precisely machined exhaust and compressor housings,
• Modified 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 ~400HP 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!

(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.