Quote Originally Posted by Frank818 View Post
The "real" 80059 belly pan is long enough to have the diffuser stick out about 2.75". Together they sort of make the diffuser, yes. It starts right after the tank at the 1.5" bottom frame tube. The belly pan is flat, but I made a small angle to it where the trans support starts and that's where the diffuser gets to play too, a few inches after the start of the trans support.

I too have a fake diffuser with what looks likes fiberglass on one side and CF on the other. I am jealous of Bob. And he's not even using his diffuser! Bob I pay you 20 bucks to exchange our diffusers. Thanks. lolll
I have 2 of them. Might sell one for what I paid.
Bob