I have a flowmaster 40. with no Resenators. Its alright. It CAN be loud in the cab but if your at a steady speed there is nothing. I find ocne the truck is warmed up you cant hear the drone as much. It sure is a head turned when you hit the gas or when its idling its got a mean muscle car sound rumble!
Thise is a drive by video so you can hear how it sounds as its going by. i LOVE it!
I plan to make a new video this week of me driving by at a good speed hamemring down.