Never ran it on the track so no times. Stage 2 really doesnt do anything for me because im not spraying or turboing my car.. i might just keep it. your radiator from your 88 integra will fit in the sedan. you will just need to get bigger hoses i belive. Never found out the hp or weight of the hatch. Started this project 2 days ago and pulled/took apart my first mini me apart because new parts/upgrades plus im putting the D16a6 block in a 91 hatch with all new parts from a y8. I made a thred on what people think i should do to get more hp out of my all motor mini me. check it out.