< => I have a 2001 Silverado 2500HD with the 6.0L. I am currently trying to find a factory replacement muffler fro my truck without having to buy it from Chevrolet,which by the way cost about $1000. I do not want to use a loud aftermarket muffler, because of the cab noise. If anyone knows where I might find the factory replacment muffler, or quiet aftermarket muffler at a reasonable price please let me know.

Thanks