Short answer NO - doesn't do much and the heat effects it also.
Chrome Reband WILL go blue even if it is ceramic coated first (I've seen it)
Thing with Reband is when they made mine they weld a boss (Thread section) to bolt on the heat shield but it is ALSO drilled through the pipe - So what happens is the exhaust gasses heat the crap out of the end of the bolt (Protruding into the exhaust gasses) and melts even the carbon fibre shield. STUPID IDEA.
The bolts that were supplied were 25mm lnog (only 20mm to long)
Pic of Reband header when i ground off the thread boss.
Also you will notic the side frame cover (Modified to suit) having to cut it out so much that I decided to weld up the lower bolt hole to make it look ok. (Just above the collector)