I had this installed on my 2020 Silverado with the 6.2. I put this same muffler on my 2019 Suburban with the 5.3 and the sound was perfect. At my age, I cant stand loud. I want that little rumble on start up, and that magnaflow sound when I put my foot in it and that's it. No drone at highway speeds, no waking up the neighbors at 4am, just a truck sounds like a truck. This muffler gives me all of that.My 6.2 Silverado has the flappers before and after the muffler and the 2 resonators at the rear of the truck. I left all of that in. Should have had the flappers cut out because its not much louder over stock other than when im gassing on it, but thats ok. I still feel that low end torque improvement immediately.I will say that the original exhaust is 3.5 but the inlet and outlet coming out of the muffler is 3. So, this muffler fit perfect. If you wanted to go with the 3.5 inlet and outlet you would have to buy item 12909 which is roughly $40 more and you would have to cut off both flappers.At 58 y/o, I've tried all the other name brands but magnaflow has never disappointed me with the performance and sound. I hope this info helps someone!
Rating: [5 of 5 Stars!]