It may be because i have the stock piping still ( resonators, cat cavern etc) but i hollowed my cats and got a Flowmaster super 44 installed. Sounds great, loud and no drone that others have mentioned. I dont usually hollow cats beacuse of emission testing and CIL but i no longer have to get tested and the CIL is an easy fix. Alcohol may have been involved, its a bit of a blur really lol. Anyway, all my neighbors have made comments. Ive apologized but they were cool with it because i dont get crazy on the throttle at/near home