I bought this item for my 2002 Chevrolet Suburban 5.3L and it works perfectly! Loud rumble, deep rumble. Not loud loud. When you press the pedal lightly, the sound is pleasant, soft and smooth. When WOT just turns into a beast that looks like a lion's roar. Also here I installed CAI as well as the chip. Either way, you can't go wrong. It was a big risk for me to go from a 28" Magnaflow muffler to a 6" muffler, but the risk paid off. UPDATE 7/10/19: Muffler still works. No signs of rust or loose parts in the muffler. This muffler uses excellent material and was my first purchase of a muffler which I have no regrets.