If you are looking for a 9 flat race car and still want to use a 3 bolt turbo lookno more. This proven performer has already run well into the 8's. 4" inlet 3" outlet and special high flow cutom turbne housing all make big power. How does 1150 HP sound? Requires a 3.5 in downpipe. (check the exhaust section) and needs at least a 4500 stall converter. If you need an adjustable actuator click the upgrade button to the right with part #628ACTUATOR (your stock unit will NOT fit without welding and or modifications)