ok, so i've heard this is workable. putting usdm h22 pistons in an h23. keep the rods and get a slightly thicker head gasket to make sure they clear. i'd like to bump my h23's compression and give it a bit more pep than it currently has. i'm at the point where if i want to get much faster, i'm going to have to go big and that means big money (turbo, all motor setup). i've considered nitrous but i don't really want to go that route. i just figured i can get the pistons, rings, head gasket and bearings for a small amount compared to other things and i can do the work myself with some help. so that's why i'm contemplating this. now where can i order some usdm h22 pistons? i can only find the jdm ones and i think that would put my compression too high. also, would it be necessary to do serious tuning with a chipped ecu, etc. so basically, ya'll let me know what ya think cuz a lot of you know a good bit more than me. and any other suggestions are welcome.