21" Supreme / 22" Beast / 23" Ultimate - New One-Piece Main Gasket

High-temp, food-grade silicone gasket from WACKER in Germany.
The best material on the market.

This photo is of the prototype, to see it more clearly.  
Production gaskets are black.

 Use this to attach the gasket:  Permatex 27037 Optimum Black Gasket Maker 3.35 oz

https://www.amazon.com/Permatex-27037-Optimum-Black-Gasket/dp/B072MRCG8W/ref=sr_1_6?s=automotive&ie=UTF8&qid=1528048747&sr=1-6&keywords=Permatex+Black+Silicone+Gasket+Maker

https://komodokamadoforum.com/topic/11441-main-gasket-replacement-videos/#comment-143536