[Formulajones]

I don't think you're going to find many, if any at all, that have wrapped exhaust manifolds or used anything other than stock shielding on pretty much any brand engine. I honestly don't see where it would even be necessary, with all the advanced coatings we have these days, it's pretty much made wrapping or concocting some sort of heat sheild obsolete.

As far as containing heat or creating a thermal barrier for any type of scavenging affect, the overwhelming choice among car hobbyists and racers is a simple ceramic based coating. Whether that be Jet Hot or Cerakote is really up to the end user. I've used them for years on Pontiacs, Chevrolets, Fords, etc... and it works as advertised, while also maintaining a nice appearance that isn't an eye sore. I highly doubt a loose fitting heat shield around just part of the exhaust manifold is going to create any type of scavenging affect or everyone would be doing it. That's where the coatings come into play.