I had that same side exhaust on my previous truck an loved it. I was running a Flowmaster Super 44 muffler with it. Some of my back seat passengers would complain about the noise at times, but it never bothered me from the driver's seat. I agree with some of the posters about how cool it would be if the exhaust exited from both sides of the truck but I know the fab shops I went to all said it would cost me way more than I was willing to pay to route the pipes to both sides. Enjoy it man!! What series Flowmaster are you running?
6'' BDS Suspension w/ Fox 2.0 rear shocks, Bilstein 5100 adjustable front struts, 17'' XD Addict wheels, 37x12.5R17 Mickey Thompson Deegan 38s, Diablosport inTune, K&N 77 Series intake, Flowmaster 10 Series SIDO, Mag-Hytec diff cover, Rumble Bee hood, one piece aluminum grill, Extang Trifecta.