So I installed the arh headers and the passenger side muffler is pushed all the way out meaning the hangers are slotted out. This makes the tip stick past the bumper about an inch and a half. So I took it back off and measured the collectors to make sure they were the same length, which they were. Then I measured the ammount of pipe that was flared and marked the collector too make sure they slid all the way on, which they did. Did the same thing to the axle backs and they too slid on all the way. Then the over axle pipes were checked to make sure they were butted together and sure enough when I was done, nothing changed. Drivers side is perfect, passenger is way off. I had this same exact problem with the obx headers on but with the stock mid pipe there was no problem at all. Anyone else ever have a similar problem?