I'm old. And a V6 just doesn't sound good to me. I want a quiet muffler. I've had Dynomax, I want something quieter. Like Caddy quiet LOL.

 

Get OEM. Probably about as quiet as you can get.

 

If you want performance and quiet, Flowmaster Hush Power mufflers are what you want to get.

 

I've always had good luck with Dynomax Super Turbo mufflers. They increase flow and are fairly quiet. Tone is a little deeper than stock.

Never had one on a 4.3 before though. (this is my first blazer)

 

I`m old also (55) I have a dynomax super turbo on my truck and love it.. Very quiet inside the truck, very very quiet low rumble outside