I used DEI's titanium wrap on the exhaust on my Sucker Punch Sally 66 Bobber. It looks great and was easy to install. I sprayed the pipes with their silicon spray before wrapping to prevent rusting. Here is the link:
Exhaust Header Wrap, Thermal Performance, Acoustical Control Products, Cryogenic Intake and Nitrous Systems | Design Engineering, Inc. DEI CryO2 Ny-Trex Boom Mat SPA Turbo USA. I get lots of compliments. The pipes are still hot, but not hot enough to burn you. The color of the titanium wrap is a dull gold.
Don't use their metal tie wraps. They are junk. I used hose clamps with the smooth side out. Works great. For the large diameter Cobra pipes, the 2" would probably be better. I used 1" on the mc pipes.