[laidman]

I've tried both, ram air is cheap but if you don't get the heat shield all your car will do is suck up hot air. My car didn't bode to well with that, I even had issues with bogging down to the point of stalling. As for the cold air, made a big difference to me. The only issue to that is puddles, hit a big one and you could be in for a motor swap earlier than you really wanted. I made a plastic gaurd that fits snug directly undder the filter, and the bumper, that made it almost inpossible for water to get in. Or if you don't want to do that, just get a bypass valve, only problem with that, you will have to cut your brand new intake and fit it in.