Posted on the Facebook Page and figured id post it here as well.
I'm a dealer for FAE so if you have any questions or would like to purchase one just send me a message.
Start off with removing the stock flapper and 4 screws that hold the through hull connection together.
https://i.imgur.com/9OyDZLx.jpg
Then undo the 2 clamps on the inside
https://i.imgur.com/TFvYl5y.jpg
Next takes some patience to get the through hole connection off. I used the debond I got with the install kit and a putty knife to help get it loose then used the shims and a mallet. Grabbed it with some pliers and moved it left, right, up, and down and hit the shims in more.
https://i.imgur.com/HIsxoQ1.jpg
https://i.imgur.com/eG3Ppkh.jpg