MuchBoost B48B20B/B46B20B 2.0T Garrett hybrid turbo, Toyota Supra MK5 2.0T (360–450 hp)

MuchBoost B48B20B/B46B20B 2.0T Garrett hybrid turbo, Toyota Supra MK5 2.0T, 360–450 hp

A bolt-on MuchBoost hybrid turbo for applications including Toyota Supra MK5 2.0T, BMW 330i G20. This upgrade is built for B48B20B/B46B20B 2.0T Garrett applications and retains a clean, vehicle-specific installation.

The turbo is based on original Garrett housings. The upgraded compressor and higher-flow turbine sides provide considerably more capacity than the factory unit, while the housings are precision-machined for the new internals.

Depending on the selected version, the manufacturer rates the turbo for approximately 360–450 hp. Final output depends on engine condition, the fuel system, intake, exhaust, cooling and, above all, the ECU calibration.

An upgraded turbo always requires vehicle-specific ECU calibration.

Futurez imports MuchBoost turbochargers and works with the manufacturer in Finland. You get secure delivery from a Finnish seller, a wide choice of payment methods and help selecting the correct turbo version. Every purchase also earns F* Bonus points.

Versions and technical differences

360 hp version

This version is built for approximately 360 hp, with upgraded internals sized for this output level.

• Manufacturer-rated power potential approximately 360 hp
• Custom billet compressor wheel
• Clipped turbine wheel helps reduce exhaust backpressure
• Reinforced journal bearing system for higher boost
• Precision-machined compressor housing and seal plate
• Precision-machined turbine housing
• Turbo core is high-speed VSR balanced

400 hp version

This version is built for approximately 400 hp, with upgraded internals sized for this output level.

• Manufacturer-rated power potential approximately 400 hp
• Larger compressor wheel
• Larger high-flow turbine wheel
• Precision-machined turbine housing

450 hp version

This version is built for approximately 450 hp, with upgraded internals sized for this output level.

• Manufacturer-rated power potential approximately 450 hp
• Larger high-flow turbine wheel
• Ceramic ball-bearing core

Common to all versions

• Original Garrett housings and actuator
• Compressor and turbine wheels are balanced separately, followed by high-speed VSR balancing of the complete core
• Required gasket set is included
• Bolt-on fit in place of the original turbo

Examples of compatible vehicle applications

• Toyota Supra MK5 2.0T – 258HP
• BMW 330i G20 – 258HP (MY 2019–2026)
• BMW 530i F90/G30/G31 – 258HP (MY 2017–2024)
• BMW 630i G32 – 258HP (MY 2017–2023)
• BMW 730i G11 – 258HP (MY 2015–2022)
• BMW 740e/740Le xDrive G11 – 258HP (MY 2015–2022)
• BMW M135i xDrive F40 – 306HP (MY 2019–2024)
• BMW M235i F44 – 302HP (MY 2020–2026)
• BMW X2 M35iX F39 – 3o2HP (MY 2018–2023)
• BMW Z4 Sdrive30i G29 – 258HP (MY 2018–2026)
• Mini Cooper Clubman ALL4 F54 – 302HP
• Mini Cooper Countryman ALL4 F60 – 302HP
• Mini JCW GP F56 – 302HP (MY 2006–2026)

Related OE and turbo numbers

851676
851676-4
851676-10
851676-14
851676-0004
851676-0010
851676-0014
851676-5004S
851676-5010S
851676-5014S
894020-5003S
894020-0002
894020-0003
8631904
8662073
863190409
863190407
11658662073
1165863190407
1165863190409

Before ordering, check the engine code and the identification numbers on the original turbo. If you are unsure about fitment, contact us with the VIN and the old turbo numbers and we will help verify the correct version.

Tip: Ask us for the gaskets, bolts, oil lines and other installation parts at the same time. A new turbo should not be installed with a restricted oil feed or leaking gaskets.

MuchBoost turbochargers carry a 12-month manufacturer warranty covering manufacturing and material defects. The warranty does not cover failures caused by external factors such as lubrication problems, unsuitable engine calibration or installation errors.