I have the same Invidia Resonated N1 on my STI. It has a very deep tone and I think it is one of the best sounding exhausts, but it is also pretty loud.

 

it sounds a little louder compared to the 5zigen i had on my bugeye, but not super loud like other cars i've heard around town (HKS, etc.). i guess it's quieter than i think, cause my room mate tells me he can't hear the car coming up the street till i get to the driveway. engine isn't broken in yet, so i haven't gone past 5k in the revs. i'll try and get some video after a few hundred more miles. do some drive bys & whatnot.