The build quality is great, the wires have ~20 ohms per foot resistance and the ends are made very well. I would not buy them again though because they will need to be cut and have new ends put on for them to fit correctly. EDIT - the wires have been modified since this review was made and they no longer require any type of modification for proper fitment.
Very high quality wires. Very tight in the seals, and keeps water out of the sparkplug hole. the stock ones leak after a while, but theese are nice and tight.
Not only do they work well, They actually fit like a factory wire set and have a nice tight seal on the valve cover valley cover. Overall, these seem like a better wire set than the factory ones.