gjcolley, if you only unbolt you right side header, u can use a wonder bar to seperate the headers enought o wrap all the way down to the joint(merge) releasing the wonder bar will hold the header wrap in place, i used 1/8th inch wrap instead of 1/16th wrap, and then came from the bottom up wrapping over and past the split pipes for about four inches. when i ordered i bought two fifty foot rolls, and had plenty to redo it from the bottom twice without even opening up the second roll. i worked out of a two gallon bucket of hot water returning the wrap into the bucket after each wrap. looks great, although not as perfectly uniform as some of the others on here.