Look up agpturbo.com they have developed an upraged turbo kit for the Gt's that come with many diffrent options on the size of the turbo and power levels that you want. I would only suggest that to 5spd owners and not auto's. my 05 gt ho is an auto and I can already tell just be driving it, its a weak tranny that probly cant handle 300hp and I really dont want to find out. Stage 1, exhaust and Intake will be it for me. Dont want to invest in a new tranny.
