Just wondering what are the issues with headers on these cars.. Is it the Oil or trans dipstick that needs to be bent, and are there any clerance/fitment issues with the front hitting the radiator fan shroud? Im looking at the ZZP stainless and the SD.. Not sure what way Im gonna wanna go yet, but im guessing they will have about the same performance, but will mostly come down to quality.. I live in MN so we have some nasty winters and heavily salted roads, but not sure If Im willing to pay 4 times the price, especially if its the same performance