For those with the catback system, I was wondering if it has quieted down much. I just got mine last week, took a trip out to LV this weekend (500miles) and noticed that at the end of the trip, I had a very nice, coupe-like sound when cruising around town. I love it and was wondering if anyone noticed if it changed much as the miles pile on.

03 G35 6MT Prem/Aero, Fujitsubo Catback, Ztube & Pop-charger
04 FX35 Tour/Tech