that guys, yes I have had multiple exhaust, and my all time favorite is teh Apexi WS, that thing was down right stock level with a nice deep tone and no i mean no drone. That was with a 15-psi (JRSC) / 75 shot nitrous. I had Bosal, ridiculously loud, Monza - tinny and raspy, remus-deep deep deep no drone etc.....This HKS is just over the top in terms of drone and I think it is because f the large diameter piping the mosy and the fact that I am N/A. Just when everyone said it is quiet I was expecting something like my old Apexi WS, my fault I know.
Now for some reason, everyone is telling the Borla has no Drone on the highway and is quieter then the RB. An RB owner on here told me the same thing (he would rather the Borla). But then people on here say the Borla drones too, whats up? I was thinking of just going back to use my stock piping with a tip and muffler and be done! But all the utube clips on teh Borla sound nice and mellow and i did not hear any of the cabin drone on utbue, except for one that sounded carzy loud? *@&*^!