Hello i need some info as i cant find what i need searching online.I am away to turbo my blacktop which is in a mk2 xr2 what i need to no is can i skim the standard pistons (i am not racing the car or driving it like its stolen) if so how much? I don't want to use a decomp plate and i am on a budget.Are the inlet manifold bolts and holes the same as the silvertop?And can anyone recomend a good inlet manifold to use? i am using megasquit so i really need something that will fit in the fez bay.