Review on 🔊 MagnaFlow 5x8 Oval Center/Offset Performance Muffler Exhaust 12259 - Straight-Through, 3" Inlet/Outlet, 24" Length, Satin Finish - Classic Deep Sound by Derick Carpenter

Amazing. Installed on 2013 Sierra 5.3. Nice deep rumble, nothing crazy like straight whistles. did not seek the status of an idiot. But definitely barks when you push the skinny peddler. TO UPDATE:. After having it on my truck for over a year it got a little louder over time but mostly deeper and all in a good way! They're going through a "breaking in period" or something, and they're definitely improving over time. My Beance crashed into a truck and got a 2014 Sierra. I will buy it again because I liked the sound! If you have a resonator. Remove those too, highly recommended!