the oem filter would be the box on the stock intake right? I travel from Temple Terrace (Busch Gardens) to Plant City everyday, so I have no idea about the restrictions on exhaust; but that is the exact idea that I had for my exhaust. How much could it cost to do this and where could I go to get it done and get the parts for it? I have no idea about the clutch, I do know that I replaced a part for it, that controls the fluid. I will NOT get rid of my a/c, this is the only car that I have had that has a working a/c =P I dunno about the underdrive pulley, 1. I dunno what it is (i can find out though) 2. I dunno if it would be worth it...would it?