Flowmaster 50 Series HD Chambered Muffler 9530572 - High Performance Exhaust Muffler for Trucks & SUVs - Perfect for Off-Roading & Towing Applications

I installed this muffler on my 2010 Ram with a Hemi. It absolutely gave it that "aggressive" sound I was looking for. I left the factory tailpipes and resonators installed and there was some modification to be done since this flowmaster muffler is shorter than the stock muffler on the Rams.At cruising speeds there is very little noticeable difference in the cab of the truck over the stock muffler. This is because the Rams with the Hemi have the tailpipes going out of the back bumper as opposed to out the side of the truck under the rear quarter panel. If you drive at a low cursing speed through a street where there are taller buildings on both sides like a downtown area you can hear your exhaust is there and sounds tough, so don't fret it if you don't hear the aggressiveness in the cab at cruising speeds... its there and the people on the outside of the truck hear it!Don't get hung up on watching youtube videos of before and after installs of any performance exhaust. They don't do it justice. Also, there are some Ram Hemi owners that take off the resonators which makes the exhaust system even louder. I would not do this as I don't want to be too much of an annoyance to my neighbors and I will want a comfortable somewhat quiet ride where I can have conversations in the cab of my truck and this Flowmaster muffler offers that!Getting on the pedal and hammering it down produces that aggressive hot rod sound from the muffler that you would expect. I noticed slight horse power increases already and fuel mileage increase as well! Im sure the torque is there too and I will find that out when I pull our camper this summer.