i've ran the stock exhaust straight piped in front of the rear tire, but with a resonator still. Then i went to 4" turbo back exhaust straight piped that was deeper, and louder at wot, but too raspy. So then i ran open down pipe for a week while waiting to cut the hole in my bed for my single 6" expanded end turn out, which is deep and very loud at wot, and even idle. then i went to a bullydog 6" exhaust which is the deepest sounding and most aggressive exhaust you will ever buy, and that was quieter then the 4" but had more tone. And now im back with the single 6" stack, same stack too i just passed it around to all my buddy's, but now i have it exiting in front of my rear tire as a side pipe, and with some 4" flex pipe its actually is deep and quieter then 6" exhaust. I think i want it back as a stack in the bed, but with a muffler, because im getting to the point to where i want a quiet exhaust now. but the loudest exhaust i had that sounded good was when i had my 2wd reg cab long bed, and put a 6x30" mitre cut stack straight piped, that thing was extremely loud when you got on it, but sounded awesome at the same time. the only i got rid of that setup is because it was on my 2wd truck which i sold, i may have to go back to the 6x30" mitre cut. And yes none of my exhaust systems will ever rust because i get bored of my exhaust within 6 months usually.
