I got lamb blasted for not going to the girlfriends house tonight. But it was worth it. I got to actually spend a little bit of time messing around with my new truck. I got the parking brake adjusted. I decided I would try to get the old crappy rusty muffler off so that I can replace it pretty soon. After alot of hitting, beating, grinding, prying, and busting my thumbnail practically off, I got the old muffler off. I fired it up and to my surprise, the motor actually seemed to run better than when it had the muffler. It cranked quicker and ran smoother. I was going to try to put headers and duals on, but honestly I don't think its really worth the trouble. I think I will just bolt on a new muffler so here's the question....................... I have a flowmaster 40 series 2 chamber, a buddy says he'll give me his dynomax single inlet dual outlet, or I could just run straight pipes. Which of these would yall suggest?