Straight pipes/open headers

[CB4ME_imp]

If straight pipes can be considered an unimpeded path from the engine's exhaust port to the end of the pipe, I'm running straight pipes (sort of). My headers are completely open, and if you look through my exhaust pipe you can see a central opening clean through, albeit only an inch in diameter. Somehow the exhaust still muffles the sound. I'm guessing gas expansion forces the exhaust through the mesh pipes that surround the opening.

Ok, I'm going to drink my coffee now and shut up..........