When Shelby died my friend had a PO for 50 of the Code Red Mustangs he designed and built. He built the first 2 in chatsworth at his shop, I was there and they were awesome. When he changed the boost to 20 pounds it put out 2500 HP. Frikking machine. I go by Toms shop on a regular basis, he makes some awesome stuff.
https://www.shelby.com/eblasts/082022-SAI/082022-SAI.html
$224,995 For that Shelby. Ouch.