Yes, they are definitely very different... I am kind of leaning toward the ex-box. Again, any info + or - is appreciated.
What bike do you have? If its an S2R, it basically sounds like a open udder. When i ride next to a 695 exbox monster, it sounds like i got 4 cyls underneath me. It defenitely deafens your right ear though, and pisses of anyone to the right of you. I love it, but quite frankly, im looking for a deeper note, and the only thing that fills that void is Termi's, but its too normal sounding. So im wainting on some BOOM TUBES!