Yo, The GSR engine is a naturally aspirated engine, Besides the fact it's fast with out the turbo. Don't install the turbo! You get the type R conversion then your car will be pushing 100-200h.p. more. Because it comes with push rods, pistons, rocker arms, rings, cams everything the whole set. If i did it to my car i will be making about 350 - 400 h.p. With all the stuff on my car. My gsr engine ratio is 12:1 and that is to high compression for a turbo and i gaurantee you it will blow up your engine! I know it for a fact. Get the type r conversion and put intake, exhaust, pullies, clutch, Mugen cams and B and M short shifter, and a Apexi V-afc 2 V-tech controller to tune your engine and take out the power steering. Then your engine will be fast as fuck. Don't bother with a turbo it's a waste of time. Go naturally aspirated it will be sick! get_nick, read about the gsr and untill then STFU! Because clearly you don't now anything about the gsr engine, besides its fast. L8er Meshca