I don't mind the stock exhaust but would like it to have a little more "pop" my wife doesn't like loud pipes and doesn't want me to change them. We like riding together so I want to keep her happy but I think she would tolerate something a little louder. My problem is that I don't know how to hear different pipes to evaluate them since there are so many options. Has anyone done this kind of research before? Any suggestions? Thanks Harley.