im picking it up from the shop (hyper racing/trapspeed.com) tomorrow weather permitting and putting the motor in hopefully wed or so, dont know. but when it goes in im gonna leave the turbo off till its broke in then have it t00ned by jason at autologic (st00pid for those of you at honda-tech) . so i shoudl have some times and a dyno sheet in a couple weeks to a month or so. but as to the pistons theyre stock compression je pistons, ls motors 9.5:1 i always thought :dunno: