Cool exhaust systems on a /6

years ago, I had headers, and 4bbl on a 225. I had dual 2-1/2" pipes, w/turbo mufflers. It sounded a little like a (don't laugh, this is for real) Jag XKE.

From the 1967 Complete Book of Engines.....Engine modification for high performance.....

Exhaust Pipes-01.jpg