[Rosco]

Guys,

I know there are several threads on side pipes but I am most curious on anyone who has experienced the difference between Spiral Baffles and the Classic Chambered. Aside from sound, really curious on any performance gains.

Would like to change my spiral set-up to Classic merely for the sound, however would like a performance gain as well. I know the spirals are somewhat restrictive, but would like to have more facts on the compare if possible...

Welcome thoughts and comments or reference links.

Thanks!