It's a upgraded Turbo for advanced drivers. MXR TD05 20G Turbo customizes a unique specification that replaces the TD04 for a TD05H turbine wheel. Furthermore, MXR also enlarges the turbine housing area to 7 square cm to improve the exhaust efficiency. so expect to gain more power than stock turbo.

Application
Direct bolt on all for Subaru Impreza WRX / STI EJ20 EJ25 engine 2002-2006 

Specification

Type：Street

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 ：Silicon-Molybdenum – temperature resistant up to 850℃
2. Steel Turbine Wheel：K419 alloy – high oxidation stability and resistance  up  to 1000℃
3. Compressor housing：ZL104 aluminum with lightweight 
4. Compressor wheel/blades：Aluminum blades-precision machining forging and light weight design

*Product  Performance
1. Cost-effective turbo increase 20-40% power for your car
2. Excellent high temperature resistance，high efficiency and durability
3. Rich experience in turbo production and own factory
4. Quality assurance
5. High-speed oil seal ring
6. Strict quality inspection
7. Improve emissions & save oil

*All necessary gaskets included for ease of installation

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)