Hmmmmm....a 10 hp gain with the Muzzy system puts his search "on target" without any other mods.
Yep, and if I'm not mistaken, he lives where there is no such thing as twisties. That pretty much recommends the Muzzy, IMO. B)
I'm pretty sure that dyno graph has to be with a PCIII mapped for the system and the regular Muzzy core in the can, since the dB reducing "Quiet Core" is supposed to cost the system some of its potential power gains (the Q.C. restricts outflow at back end of the can a bit).
Lord knows that even with Muzzy's "Quiet Core" installed in their Ti can, between the weight savings and the additional pop, it's significantly easier to bring my front wheel up accelerating onto the freeway than when it had the OEM pipes installed. Going to Yosemite last year and getting stuck behind a garbage truck while the group took off (this was right after I'd installed it), with Judy on the back and the bike loaded for the weekend excursion**, when I finally got the opening, I went by that garbage wagon on one wheel. "Holy Shit!!!" we both said.
** Of course, the rear weight bias helps bring the front up, but I know my bike well enough to know that this was different from what I had grown to expect with the OEM system in place for 2 years.