7+7 Ball Bearing Turbocharger 2.25" Fits Subaru WRX STI GTX2863R w/ .49 Housing

Item No.: 002-3155
Inventory Status: In Stock

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Product Information

Product Information



Item Name

MAMBA 7+7 2.25” fits Subaru Bolt-on GTX2863R Ball Bearing Turbocharger w/ .49 Turbine Housing


Brand New In Box

Ready to work

Support 350~500HP

Max Boost: 3.4Bar / Recommend 1.5~1.8bar for daily street car.

GC8 / GDA / GDB EJ20 EJ25 turbo with single scroll turbo


Compressor Wheel: 47.1/63.4/Trim 56

Turbine Wheel: 47.0/53.8mm

Compressor Housing Inlet OD: 2.25” (57.2mm)

Compressor Housing Outlet OD: 2” (51mm)

Compressor Housing A/R: .60

Turbine Housing A/R: .49


Ceramic Dual Ball Bearing (NTN JAPAN)


Oil & Water-Cooling


0.8bar yellow spring is pre-installed on the adjustable actuator
Additional 1.2bar (Black) and 1.5bar (Blue) springs go with box.

Kit Includes

1 x MAMBA 2.25” GTX2863R Ball Bearing Turbocharger

1 x PTFE Turbo Oil feed line kit

2 x PTFE Turbo Water Line Kit

1 x Turbo Oil Return Line Kit

2 x Turbine Inlet & Outlet Gasket

1 x Vacuum Hose Kit

1 x 12mm to 4AN adapter (Convert Factory M12x1.0 adapter to 4AN that connects PTFE Line)

8 x Forged SCM415 Stud Kit with Copper Nut

Made by



6 Months Parts & Labor

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