advanced auto and auto zone carry a brand called tiger patch. cheap and easy to use. i can hold my hand on my sbp pipe. it's warm, but not enough to burn. i think it was around $2-3 a roll, i used just under 3 rolls total.
If you decide to use the wrap, make sure you do not get the fiberglass heat wrap. Trust me you will regret it, I learned the hard way haha. You'll be itching like ****. I ended up getting some Titanium Exhaust Wrap off amazon and it works awesome.