Unfortunately not yet...UR charges a ton for their resonated mid pipe and I haven't seen anyone outright selling theirs. The one guy trading his had such a low post count that I didn't feel comfortable sending mine to him without having his first to be safe.
whoa man,a stock g35?:S me and nicoo have been raping those.i have some vids i can show you. it could be that you were heat soaked. i'm having some problems myself with the car, i made a thread.check it.
yeah, the closed CF box probably keeps a lot of the sound in. Maybe look into the options from AWE or BSH, etc, but yeah, those will be significantly louder and noticeable to others on the road, where the APR is basically silent for the most part.