Ummm......Not entirely sure what you are asking?? I assume you are talking about your 6th Gen VFR, but if you could clarify what you mean by "switched out" that would help.
Yup I believe he means has anyone put aftermarket slip-ons or pipes, but I just wanted clarification. - If that is what you are asking there are a quadzillion threads about everyones mods, preferences, sound clips, instructions and photos.......Just do a search and you will have endless info to sort through.