Depending on how much smaller you go, the idler may take up the slack. If it doesn't, you would buy a new (shorter) belt, not a new idler.

ok good to know. Ill get it swapped out hopefully soon and then scan it again. I have a fender well intake system on it that i rigged up as well. Gotta love that supercharger screaming from the front end. Ill get pics of my setup for you guys to see I pulled the vacuum cannister from infront of the washer fluid tank and set it aside and pulled the plastic out to make a hole and my filter fit right in!