Sorry bout late reply, yeah it can be used as a heat shield for the manifold if you can modify it to fit no problem, as for what temperature does it work up to, im not 100% sure but i know it will last far far hotter than a turbo on a Starlet.
Hope this helps and ill get the confirmed temperature for you.
The inside layer of these is heat resistant to over 1100 degree's, the top layer is resistant to 250degree's but that layer is there to make it resistant to oil and other liquids.
Updated first post with the list and please u2u me asap and confirm you still want to be part of the group buy and ill update the first list accordingly.
Awaiting for the company to finish the last few heat blankets, once there complete they will be sent to me and ill pack them up and send them out to everyone, I have new sticker's in stock now so if anyone wants a sticker in with there blanket order let me know, i have white and black stickers available.