when i had my 99 gmc sonoma with the 4.3L v6. I had an flowmasters delta 40 series muffler for it. it sounds pretty good for what it was. Had a nice rumble for a v6
I had a 4.3L '98 S-dime for a while and it did sound pretty good for a six. It didn't sound like an 8, but it did sound good for a 6.
