its a t4 turbo. i thought it sounded to good to be true also but kevin knows his shit and i trust him. i only got 27,000 miles on my car(its an 01 gsr) and i didnt want to mess it up. kevin was tellin me tonight that if something happens with the turbo it wont hurt my engine unless there is a lack of oil because the turbo isnt gonna see past like 4 psi.