I was looking at insulation options to wrap my future downpipe I will build. I came across this >
http://www.mcmaster.com/#high-temper...lation/=ty5ti4

The "ultra high silica sleeving" rated at 2300 degrees

THinking about slipping 2 feet of this "ultra high heat" insulation before welding the v-band.

 

I had good results with DEI titanium.

No idea about those you linked.

 

DEI Titanium is the stuff.

 

I'll add a third to this. I've got my RB header and midpipe wrapped all the way back to the resonator with DEI Ti wrap and it functions and looks just as good as the day I installed it nearly a year ago.

If you do end up trying the stuff from McMaster-Carr, please let us know how it turns out.

 

In the past I have heard warning about using wrap as it can trap water and cause corrosion. What materials would you feel comfortable wrapping with the DEI titanium? Aluminum? Stainless? Mild steel?

 

My stuff is all stainless, no problems that I've noticed. Mine was wrapped before I got it, so I wrapped it, then I unwrapped it to add a wideband bung, and wrapped it again. No cracks, no corrosion.

I'll probably wrap my ARTech downpipe (also stainless) and not worry about it either.

 

If you're wrapping it to reduce heat, then there's probably not an issue with moisture remaining. Its probably an issue for cars that aren't driven frequently or far.

I was looking at this stuff - wrapped and strapped with stainless zip ties. Much easier to install when the down pipe is in the car too.