How I spell relief

When we did our testing at the track, we found that good mufflers and good systems only reduced trap speed due to their weight. Glad to see the Hot Rod boys found the same thing even with their 600 plus big Chevy.
They would have gotten better results and almost the same sound reduction with the 2.5" mufflers and tailpipes had then been able to run 3.0" back to the muffler but that is not what they were trying to demonstrate.
Great job!
Tom