Just did my first oil change since the header install and I noticed there is minor rubbing between the two. It seems as though the header is holding up fine (visible contact patch about the size of a dime) but the skid plate is wearing away a bit on the inside. I never noticed any noise or vibration between the two, but I will like grab some washers to add a little clearance to the skid plate. Thought I'd toss this out there to see if anyone else has noticed the same problem with this or any other skid plate. Also just as a word of warning to those considering the Ravetech.