The rep I talked to from Rush recommened not going above a 2.25 baffle without internal engine mods, dont know why, and Jamie from Fuelmoto said that performance really drops off with the 2.5 baffle.
I want LOUD myself, but Im not going to sacrifice performance for it.
Best I can tell, yes. At least from what I can tell just from listening to bikes I see with Rineharts. I've never actually heard mine anywhere other than in the saddle and behind it at idle.
The Rush 2.25's on my RKC are louder than the Rineharts on my buddy's Road Glide and I think they have a better sound, too. Deeper and more of a rumble. I wouldn't trade them for any others I've heard.