I currently have OBX-R Racing Headers with a TruBendz, Flex Pipe. I plan to switch to a SVT Header with a cat or ORP, not sure which yet. My question is, I know the SVT Header doesn't have the EGR Bung on it. My question is, how much is an estimated cost for the EGR, or what can I do to bypass or tear the entire egr system out of my car? With doing this is there a tune to counter the check engine lights?