I've got a few q's. First do underdrive pullies require a shorter belt or will the stock work? Also which X-H pipe do guys recommend, i've a flowmaster catback with i think 40 series cause its not too loud, and i want something that sounds sick, but doesn't hurt ears when driving on the freeway. I was looking at bassani or magnaflow and i was probably gonna go with the catted versions i just don't want it to be the same loundess as it is now, but not too loud. Ya im picky i know. Thanks for the help