what stock piston will give you highest compresson in a gsr

1. type r

2. gsr

3. b16

or is it better to just go wit after market pistons

 

why don't you just google or looking at the service manuals or the compressions?

 

http://www.c-speedracing.com their CR calculator should give you the answer you need.

 

if its oem piston u want then i say pct will net the highest comp. i believe in the range of 12.5 give or take depending on your setup or what not. if u go aftermarket then u can get whatever u want to match your setup.