Im doing the same thing! If u are trying to boost later go with low compression pistons and just live with your car not makin enough power!! as for sleeves... bro your gonna need them if u plan on boosting the h22! I have a spare h22 like u and also one in my accord as a daily driver and im building the spare one! Ive already got it sleeved! If u want to go fast with boost and the h22 it HAS to be built! Im in the same boat as u, but ive found someone with stock bottom end h22 boost and his car has been down for months cuz he blew it! plus it was tuned! boosted h22 the bottom has to be built, pistons, rods, sleeves, and rings are a must when boosting the h22! hope this helps. keep me updated