Welds are rubbish and I received it with black fingerprints. The box was also damaged when I received it. Didn't fit my 2012 Silverado (4.8L) as I said I had to buy transmissions. Sounds decent, much louder than I thought based on the reviews. Drones on the Interstate (approx. 1600 rpm at 80 mph). I travel a lot and it gets boring quickly.