Traded my 8 year old Nomad fi (32000 mi) for the 06 Pearl White Roadliner in May of 07. Got a great deal off the showroom floor. Managed over 6K mi in the first season. Not bad for the Rocky Mtn states. I am thinking about changing exhaust to Road Burner Velocity Pros 2 into 1. Any experience with this specific exhaust? I am a bit concerned about excessive poping and back firing if I change from stock.