I have a friend with a 65 valiant 225 slant six. Very stock car. Factory muffler is all rotted out. She would like a little more sound and is asking what muffler. I’m thinking ANY new muffler is going to be quiet compared to what she’s got and the tiny factory pipe is probably going to be replaced up to the manifold.

I’m thinking go with a little bigger pipe (2”?) and just run it all the way back, no muffler. Worst case she can insert a muffler afterwards if this sounds horrible.

Any thoughts?