I know the clutch and flywheel will fit. The intake manifold on the gsr is lower so my intake probably wont fit. Ill proally just the use the short ram for now. The Header will bolt up to the gsr head and clear but Its not going to bolt up to my exhaust itll be a little to long or to short. I think its like 1/2". Im just going to have my exhaust lengthend a little bit or shortened. So no problem getting my LS boltons to work.