Not sure why people hate the drone so much...I bought the exhaust so I can hear it. I purposely drive around 2100 rpms because thats the loudest I can get my 40 series at. I know I should have gone with straight pipes but I like the rumble of the flows. Either way, I probably would have replaced the muffler if I heard no drone.

 

The PREDATOR is the only way to go.. I had installed a 50 series Flowmaster with resonator and the MDS was to annoying. I installed the PREDATOR-set it for the 91 tune, disabled the MDS. Totally different truck now. Still have a few minor flat spots on hard acceleration that I can't figure out.

 

Well the noise when in MDS is awful.

 

guess I'm lucky enough to own an 04! don't have to worry about that mess