Yea Definata definitly go with a chambered muffler like a Flowmaster, there good mufflers. I know the Magnaflow's sound pretty good too, but I like the Flowmaster's. If you want the absolute loudest sound possible, go with the Original 40 series mufflers, but My all time favorite muffler for a vehicle with a V6 engine is the Flowmaster 40 series Delta Flow. There arent quite as loud as the Original 40 series, but they produce that awsome deep throaty sound outside of the truck, but at the same time, Flowmaster's Delta Flow Technology reduces the amount of resonation in the cab. This is (In My Opinion) the best daily driving muffler money can buy. Definetly check these out, I kinda had doubts at first, but when I bought one, I rated it the best 100 bucks I've ever spent.