I say yes. The engine can handle maybe 6-9 psi safely on gt with that turbo kit. We know the gtp has the supercharger thus can handle the boost, but the gt and gtp engines are quite different aside from the 3800 block. Its the trans im worried about. The kit claims 296 horses and 438 lb-ft of torque! The 4t65e trans is, sadly, known for its undependability. I dont know if the gtp and gt trans' are built the same tho.