my truck had dynaflow on it when i got it and the mufflers rotted out all the time. now i have a cherry bomb vortex with a k&n filter and that has a wicked good tone to it

 

I just put on the Bolra 140230 from Jegs(Best price) This one is the Touring edition(single 4" exit rear) so it is not too loud. If you want more sound then get the dual out which I think is 140232.? It is the same set up the dealership would install as an upgrade. I have the AFM fuel management system and the drone is hardly noticed. I have read only Borla and Co$$a take the drone issue into consideration for these trucks..
It sounds very good on a mild to heavy acceleration..