All I can say is that CarbonJoe (aka Joe Vargus) ROCKS when it comes to carbon fiber work. Of course he DOES contract out to major aerospace companies for his composite material work.
These watershields were finally made for me (after annoying Joe with dozens of e-mails to make them). They are made using the vacuum bag technique which draws the resin through the CF for a better finish with no bubbles. Very exquisite work.
They run $125 for the pair for triple Webers and come pre-drilled for the 4 wingnut holes at the top of the air filter.
He also makes them for two barrel carbs!
Joe can be reached at carbonjoe@attbi.com
http://www.carbonjoe.net/index.html