Dual Exhaust for 360 in '67 Dart

Your inbox is still full, can not private message you. I have Walker Quiet Flows on both of my cars with an H pipe. No drone. Didn't know that Dynomax made a Quiet Muffler, I took them off of my stock 318. The drone was terrible.
I think…. (OH BOY!) that Walker is the parent company….
I believe DynoMax operates on its own but Walker owns them.