Been thinking about putting the pro-chamber on just to change the tone a little and maybe gain a tiny tad of high-end power. I read the post a few days ago about the guy that just did the same thing. Has anybody else done it?? They say it makes it a little quieter which doesn't bother me too much but I hope it sounds a good bit deeper. I don't like the sound of x-pipes though so if it sounds close to that then I won't do it. Any Pro-chamber fiends wanna help out?