wrap not needed.when you install your headers make sure you have enough clearance between passenger side header and transmission lines with Kooks.trany lines may need a bit of a tweek for clearance

 

Thanks, just did that today, they give you a little clamp that pushes the lines up a tad, gives about 1/2" clearance
NSF

 

I have no wrap on my header and to be concerned of a fire because of wrap i have unwrapped kooks with a built and procharged c6 clutch line got to hot with a heat sock on it and burst and the fluid hit the header and in my garage caught fire and until i got to the extinguisher 10 secs later was one hot fire . All due to uncontrolled heat in engine bay so idk what to say as far as the wrap being bad but mines getting it . Fuel line right above fire givin no fire extinguisher i wouldn't have a car or garage.

 

This is an older thread but surprised no on chimed in on this.

 

I had the DEI wrap on my starter, when i took the car to a Corvette shop/mechanic for engine mods, my mechanic removed the starter heat wrap and told me air flow will keep the starter cooler. Not a single issue with my starter, even in Florida heat/humidity.

 

Insulating heat product of any engine in any power plant in the world improves its efficiency and economy because heat is energy
There are even secondary and possibly tertiary power plants that use waste heat from the first and second because it is so valuable

There is absolutely no performance based down side to insulating, wrapping, coating, other than the weight it adds I guess
Exhaust wrap for example is a performance enhancer. Not only does it reduce under hood temperatures and therefore intake air temperatures, The additional heat kept inside the exhaust system increases exhaust gas velocity which can have performance improving influence (depending on valve event timing, system pressure, fluid momentum(design of tubes)) helping to bring air into the the cylinder via flow work.

As with any performance improver, there may be down sides to certain mods, such as Exhaust Wrap:
-may reduce integrity of cheap thin wall exhaust tubes (not an issue for quality, thick walled and cast usually)
-itchy and annoying, I don't like exhaust wrap and I don't recommend if it you have better options because its a potential health issue
-sometimes appears unsightly, takes experience and sometimes a second attempt to get it looking good

Luckily you can do many other performance enhancing insulating things with no real down sides other than cost and time, such as
-reflective heat shielding in opportune locations to reflect radiative emissions
-Insulating ceramic/plastic/paint coatings for exhaust and cooling system plumbing
-Keep an Insulating plastic intake manifold
-Use large thick walled exhaust tubes for headers and exhaust system

Most OEM provide the thick tubes/manifolds and some form of reflective shielding around the exhaust. But we can do better and as the power output increases so should our attention to the heat the engine is producing as a byproduct

here is a example of junkyard shielding done for low cost to maintain a cool engine bay and cool engine coils , starter, etc...