i have a 23 inch glasspack and mo muffs with a ubend delete all other is stock. i must say im impressed at the sound basically the only time i hate the sound is wot but then again at wot i can hear my charger more so is all good. no drone and its not really that loud. the best is when im cruising about 60 or 65 and the rpms are at about 2kish its got a nice sound to it. i have actually had a few people tell me its the best v6 exhaust theyve heard and i actually got complimented by a 350z boy...lol so it cant be all bad.