GSR Head, Cams, ARP Studs, MLS Head Gasket, 100 Shot. Gutted. 12 Second car all day. That'd be the cheapest route. Same setup, stock bottom end. Run a 50 trim, around 10 psi, you're over 400hp...then you're talking LSD, Axles, Clutch, Radials....Then it gets pricey ontop of the whole turbo setup.