Review on Lawson Industries 71149 Performance Muffler by Cesar Carter

GMC Sierra 5.3 2004 I don't have catalytic converters on my truck so this muffler sounds great, has a nice deep tone under normal driving but at full throttle it has a pretty good loud deep sound and that harsh pop when you downshift but on a standard cat truck it would be a very deep and quiet muffler but it is designed to make Magnaflow a great muffler into an incredible one price copies price.