from what ive been told there would be no point in going for low comp pistons if the cars running fine and you dont intend to mod the engine any more they are direct fit the main diff between normal and low comp is they have a smaller height alowing more room in the engine a cheaper way off getin the effect of low comp pistons is to have your orginal pistons skimmed this giving you the same effect and it would allow you to change the compression ratio of the egine not sure by how much tho but it will allow you to run serouis boost prices vary but try burton power they sell em and can skim pistons to, hope this has helped you a bit im in the same postion with my FRST to have pistons skimmed or buy low comp??

frstboy