Well a few months ago we had some fun when I remembered cutting off the bottom of beer cans and bolting them into the bell ends of cone headers with 1/4" holes drilled in the aluminum just to lower the sound level. Then again I wish I had a coupe with an open hole in the top just so I could use a green plexiglass insert instead of welding in a metal top. Dave Severson let me down softly saying that has been tried but was a sort of fad that is past it's day. Hey I got my hands full as it is with the minimum roadster, supposedly lowest cost and simplest, but still a challenge for me, but if I had a Model A coupe I'd do the green plastic roof bit.

Don Shillady
Retired Scientist/teen rodder