I Have a 1999 GMC sierra 2500 with a mangaflow exhaust on it.

It sounds really nice from 1k to 2k rpm but after that the nice deep sound cuts out and is quiet again. Is there any way that i can make it louder? I Have looked at it but have no idea what to do?

Thanks

 

Thats how Magnaflows sound. Its like a pillow over the tip of the pipe. To make it louder got 2 choices... cat delete, or louder muffler.