If you are looking for an inexpensive replacement muffler for a 6.0L Chevrolet that is less than $500, then this is what you need. Some idiot cut off the stock muffler and tried to replace it with double glazing and it sounded like crap but the truck was in good shape so I bought it. Long story short, the stock muffler is long gone so I bought this as a solution and it works really well. It has a nice deep rumble that makes it sound a little more springy than other 6.0s in my area.