You've got to remove the AI, I ran my bike the first 500 miles with it connected and the headers already started to blue. After removing the AI it stopped and hasn't gone any further, so i only have just a little blueing at the very top. If anyones going with the Epco's they will turn Goldish with the AI hooked up. I'm not the expert on this , but in my opinion by experience the AI really heats up the exhaust.
