Fuel Injector Wraps

I know there is a TSB out to put a "heat shield" (aluminum foil) over/around the injectors....but does anyone know of a heat shield "wrap" to go around each individual injector?

Looking for something similar to the Armor Shield spark plug covers that Accel makes. I'm sure there are others out there.....(that stuff is rated to 450*F)

http://www.wjjeeps.com/tsb/tsb_wj_1803103.pdf

here's the TSB for later model 4.0's having a hot start misfire, it has the PN for the sleeves