Rear muffler delete is ok (minor drone) , replacing center muffler with X-Pipe ($30 Jone unit from summitracing.com) adds more character at 2800 rpm+ but low end drone is noticeable. However, it keeps enough back pressure for low-end torque to remain good (unlike when center muffler replaced with straight pipes).

Time for glass-packs as I want more sound, especially down low.

At the Jones website they mention glass packs, and reverse flow option for maximum engine performance. Anyone have experience with this?

http://www.summitracing.com/search/p...er-in/2-000-in