with the twin turbo heat management and protection is crucial. I use the DEI hose covering for many of my hoses and electrical lines for the heat protection, and because it comes in black which looks good.
Today went for a short spin, getting ready for Hot August Nights in Reno. When I came back I could smell gas, and saw gasoline pouring out under the car. My main #8 feed line to the fuel rails had split and was leaking gas badly , due to 45 psi used in efi. Because I had that line covered in DEI heat barrier wrap it made the gas follow the covering down under the car and exit at the frame where the covering stopped. If I would not have wrapped that line it would have been spraying on the turbo downpipe, and I cannot imagine anything less than a major fire resulting.
I got lucky, but figured I would at least share a side benefit to an aftermarket item that I had not considered.
Jody