Here is the wrap:
Design Engineering 010122 Pipe Wrap And Locking Ties Kit 2 in. x 25 ft. Tan Pipe Wrap And Locking Ties Kit https://www.amazon.com/dp/B00B82X9NY/ref=cm_sw_r_cp_api_i_5julCb3VP22VF
Here is the silicone spray. I have used it both with the wrap and by itself with good results.
Design Engineering 010302 High-Temperature Silicone Coating Spray - Aluminum https://www.amazon.com/dp/B000MY1RB0/ref=cm_sw_r_cp_api_i_QnulCb0XJAQXD
Here’s my downpipe adapter after 4 years of daily driving and a few (cough) exposures to 1300 degree EGT exposures....of course that temp is pre-turbo, but still.