D16Y7 piston swap

[aitan]

Hello:

I want to increase compression by swapping pistons. My car is a 98 civic, standard engine D16Y7.

I dont want to do head shaving-porting-etc. I just want to increase compression, and install a header and a Cold air intake.

I`ve been looking around for information, and these are the pistons I can put into my cr to increase compression...
- PM3
- PG6
- Bisimoto 75.5 mm

I would like to know which one would be the most advisable swap.

Thanks for your help. Regards.