I have found some pistons that lower the compression to 8.5:1, If i do infact do a turbo it will not be on my current motor(D16A6) of 199,000 miles. i plan to do it on a zc dohc motor, that is not quite as used as mine(57,000mi). but i will also do the pistons on those as well. i wasn't sure if i needed to rods with as low boost as that is running, and for that matter do i really need the lower compression pistons