I don't have anything on the Thrush.. but I am running the Flowmaster 40 Series on mine and love the sound... and it really isn't that loud as far as bothering the neighbors... I picked up my Flowmaster exhaust setup complete from Rusty's offroad... They do have it with a Glasspack, the Flowmaster as well as another muffler that is supposed to be similar to the Flowmaster.. It was way cheaper to pick up that exhaust and shipping than it was to have a local shop do the same exhaust..