black widow mufflers

I'm going with TTI 3"exhaust system from headers to rear bumper and using dynomax ultra flows first choice or black widow 250/300 venom mufflers
i'm running a tti 2.5 out the back with dynomax , no drone in the car but it is loud not in the car but when i open it up people hear it from blocks away . i'll try to get a video with sound one day when the car is out of the shop