Hi, im currently rebuilding my S2 Turbo, and want it low comp, ive taken my bottom end to a local engine specialist, its been there for a few months now, and today i got told by him that hes having trouble getting the pistons and id be better off getting them myself.

I need 1mm oversized low comp pistons, my mates got mahle ones in his, but ive heard of those accarlite ones being quite good, ive looked on burton power but dont really understand if i order the 1mm accarlite, will they be low comp, i wanna run 20 psi, so they have gotta be low comp.Also do they come with the correct pistons rings or will they be extra money on top of the money for the pistons

Got the money ready, and want my car back on the road!!. Any help will be gratefull, thanks!!