These turbo piston kits will have a compression ratio of approx. 8.7:1 in the 4EFT engine and 9.6:1 in the 5EFT engine - All kits come with std turbo pins, premium turbo rings and pin clips -
###You can also upgrade the pins to Heavy Duty - add part number 18mmx2.000x0.217 ###UPGRADE ONLY
Custom Pistons also available for both of these engines, email sales@traumpistons.com for options-