this is my first time to any kind of forum. don't know how to use this yet. I have a 05 hummer h2 I want to improve the flow of the exhaust with a little deeper sound but I dont want the inside drone what muffler is reccomend with just swapping mufflers? I've thought about the flowmaster 50 series any help appreciated

 

I had a Flowmaster 50 series on mine. It sounded great but did have a very noticeable drone on the highway. A muffler by itself is really only going to change the sound. I ended up switching it to a Borla touring one - but that was part of a complete GM Performance Parts stainless cat back system that I out on at the same time as a set of OBX long tube headers and high flow cats. Then did a custom tune. That full exhaust system with the tune really woke it up.