Post by
180fan »
https://forums.nicoclub.com/180fan-u3602.html
Wed Oct 29, 2003 6:45 am
nur spec is resonated and should be a bit quieter. Expect it to be around the same sound levels as the N1 by Apexi. If you see a bulge in the tubing before the actual muffler, it's resonated and will be somewhat quieter. If noise is that much of an issue that you'd get pulled over, get a cat and run a silencer. But then again, if it's going to be track use mainly, why even bother worrying about getting pulled over, since there aren't cops that monitor noise at the track? I run by Infineon raceway with my unresonated GP and I don't get pulled over, just gotta be somewhat more careful of how high an rpm you're running at.