genuine Subaru/MHI turbo (forester/wrx) upgraded into a TD04HL 19T featuring GTX billet impeller technology.
Both housings have undergone extensive machining to house MUCH larger exhaust AND compressor impellers that outflow and outspool the VF39, 43, 48, 52. The new rotating assy has been VSR balanced to MHI's specifications, balancing certificate included. One year manufacturers' warranty.
This TD04HL is a great "100% bolt-on" upgrade for base model WRX, forester as well as STI. It's lighter rotating assy and new-age impeller technology allow for a crisper low-end response and sufficient flow for 400hp+.