i like the sound effects, here's what i would 02hondaex. Buy a3 if u want to boost, 250hp is good horse power on a civic, plus hondanuts will prase the swap in genral. But if u wana go all motor go a2. I think doing a frankenstien swap on a a3 is a waste of $ and time, plus it's not easy project. If u wana frankenstien get a k24a1 and put an k20a2 head on it, u'll have more torque than a rsx type s with the horse power to keep it fast, however i'm pretty sure you stll don't get the same redline as a k20a2/z1 but you'll have them off the line 4show