Turbo TD05 20G Turbocharger For Subaru Impreza WRX STI EJ20 EJ25 420HP Water+Oil Cooled 02-06 Application Direct bolt on all for Subaru Impreza WRX / STI EJ20 EJ25 engine 2002-2006 Specification Turbine Trim: 76.4 Turbine Inducer Diameter:56mm Turbine Exducer Diameter: 48.96mm Compressor Trim: 59.8 Compressor Inducer Diameter: 52.6mm Compressor Exducer Diameter:67.9mm Bearing: Wet Float/Journal Bearing Cooling Type: Water + Oil Warranty: 2 Years for any manufacture defects Turbine housing: 7cm2 Compressor housing inlet OD: 57.8mm ?about 2.25 inch? Oil feed: M10*1.5 Oil drain: M16.8 Oil drain screw?2*M6*1.0 Water in/out: M14*1.5 Features: *Product Material 1. Turbine housing ?Ductile iron QT450-10 - temperature resistant up to 700? 2. Steel turbine wheel?K418 alloy - high oxidation stability and resistance up to 900? 3. Compressor housing?ZL104 aluminum with lightweight 4. Compressor wheel/blades?Cast aluminium blades ? superior air tightness corrosion resistance *Product Performance 1. Cost-effective turbo increase 20-40% power for your car 2. Rich experience in turbo production and own factory 3. High-Speed oil seal ring and Precision clearance 4. Built for durability and strength * Technology Advantage: 1. 100% balancing Test by TURBOTECHNICS VSR3 2. Advanced Actuator Tester/Programmer Notice * Please check the specifications carefully before buying. If you are not sure about these information, please feel free to contact us. * All WRX Wagon engines and automatic sedan engines came with a TD04,all manual WRX sedans including STI versions had a TD05. If your old turbo is TD04 one, some modification is required to fit the new turbo. * It's a direct bolt-on so nothing else would be required. But, to get it's full potential you'd need some additional upgrades. Intake, exhaust, more fuel, etc. it will also require custom tuning. * Professional installation is highly recommended(No Instruction Included)