imho shorter pipes are louder due to what was said, they are under your butt instead of the long ones which dump the sound out past your rear tire.
I've the long TORS, Sceptres, and D&Ds. The D&Ds are barking mad. The Sceptres are a sedate bark. The TORS are whisper jets. All three sound great but if riding behind the D&Ds, you'll wish you had ear plugs. The Sceptres if running with another bike with them, a serious case of acoustic resonance occurs. You'll swear something is wrong with the ride. lol
