More questions for the better educated out there. Anyone know if Hooker Tuned Flow slip on's are a fair performing muffler? I love the sound of them over most pipes I have heard, just don't know if their performance is comparable to other slip ons. Also, what is the difference in the "stage" of head work ie stage 1,2,2 1/2, 3 and so on. Thanks for the help.

2005 Eglide