In my attempt to bring my Cobra's exhaust note to a *reasonable* level, I replaced my old, stock, blown out glasspacs with 18" Race Lobaks, with some success. Still too loud and raspy, so I installed a pair of Vortex cones in my collectors. Just a tad quieter and less raspy, but still nasty. Not bad. Cruising on the freeway doesn't necessitate ear plugs, but I'll probably still use them on trips. My ears aren't what they used to be, and I want to preserve what hearing I have. While my current setup is pretty good, if I had it to do over again, I would have gone with the 24" Lobaks and Vortex cones. My neighbor next door still hates me.
Hey, I tried. Rich