Sup again guys thanx for all the information, and yea i pretty much know about all the guages and stuff, but i dont plan to run anything over 10psi anyways, but i want a fmic cause i can get one from my friend cheap, is there a reason not to get a fmic, i mean its the same as a smic but i can get it cheaper and it looks alot better from the front of my car, hehe, thanx guys, any more tips, please post!!