one last longer or holds heat longer than the other.. Also I was reading about the Gold Coating they are offering and over heard a rummer about them doing two other colored coatings, but don't know what colors or what or how better they are... Honestly I don't care the price, color or anything, what I want is PERFORMANCE, I was first introduced to BCD Coating but had heard and seen work from Swain, the people at BCD Coating which the one they sell is a Chrome coloring look runs MORE expensive to my knowledge than Swain Coating's White Lighten coating.. well I couldn't ask them which one is better, cuz both will say they are the best.. but I wanted other opinions.. plus I'm gonna coat the headers, downpipes and exhaust housings...thanx in advance....