Review on 🔊 MagnaFlow 5x11 Oval Performance Muffler Exhaust 12589 - Straight-Through, 3in Inlet/Outlet, Satin Finish - Classic Deep Sound by Luis Estrella

I have been using Magnaflow mufflers for over twenty years. High quality stainless steel, perfect welds and I like the sound. Quiet at idle and cruising, but sounds terrible under hard acceleration. I chose the 5x11 case because I prefer the quieter side. 4x9 would sound very harsh. You can't go wrong with this.