tti exhaust muffler selection

The X-pipe would have made it quieter. I have the short ultra-flos and it's pretty quiet while cruising. Can have a normal conversation in the car with the windows down at 70 which is about 3k rpm. There is a resonant rpm, but it's a pretty narrow band around 2k, but even that isn't too annoying.

Another tip would be to change the tips to straight out the back, stick them slightly past the bottom of the bumper as opposed to turndowns. You won't get the drumming under the car.