for the 2000 16 I4 you want pistons like this as same bottom end as 2000 8v I4
made in the states complete with gapless rings to suit the 8 valve head for 635 quid, and they are forged items with custom cnc machining, pistin crown thickness is 10mm
i am currently running 19psi now on a cossie stage 2 T3 turbo mbe management and calibra turbo injectors