I'm in the markey for an o/r X pipe, summit has Pace Setter ones for 150, that sounds pretty good to me, has anyone heard anything about them? They're made by Holley, and I've only heard good things about their other products... any other advice on good o/r X's would also be welcome. 50 - 100 bucks in the long isnt that big of a difference, but I'm in college and in 30 rack terms we're talking 4-7, which is huge!