I know this topic has been beaten to death, but I figured I would ask you guys a specific question anyways. I currently have an obx 3" downpipe to 3" catco cat, into a 3" x 18"ish glasspack, into a 3" dynomax ultraflo over the axle, out to a 4" tip. I'm getting pretty good drone at 2k rpm, but otherwise it sounds pretty good. I read in an old post that someone actually noticed that having a resonator upstream of the muffler, right behind the cat actually increased drone. Might I be better off pulling the resonator and maybe trying to fit a smaller one between the muffler and tip? I don't think a bigger diameter resonator will fit, I might be able to fit a slightly longer one, but I'm not sure.
Thoughts? Could adding the resonator increase drone where it is?