I was choosing headers for christmas and decided upon some "ebay" headers for the price. Never again lol. They worked fine but the issue was the quality control was non-existant. We had to cut the flanges off the headers and add more exhaust piping since they were not a "true fit" like the description said. I learned from that to always buy from reputable sources. They work so far, but I plan to get some better ones. What I would never change would be the addition of the underglow. It bring alot of character to the car!