If I remember correctly, then it would be about 25 feet of 2" wrap per side to wrap the entire header but leaving the flexi uncovered. This will give good overlap and enough extra to ease the wrapping process a bit.
I did wrap mine, using similar looking wrap but from two different suppliers. One lot went brittle and faded to white almost immediately before falling apart so it was replaced with the rest of the wrap that matched the other side. After a very few months both sides were very tatty, fading and going brittle so I gave up and removed it. I now have aluminium tape strategically placed on the RHS indicator body to reflect the heat from the header.
There seems to be a vast quality range when you look at exhaust wraps with no real way of knowing what you are actually being sold.
