I picked up a cusco 20V header a few weeks and today I went out and took the stock header out and test fitted the cusco. The cusco will fit but I first have to relocate the starter to the intake side and reroute the coolant. I will also obviously have to redo my exhaust setup after the header. I haven't decided if I will get rid of my HKS exhaust or keep it and just make a new mid pipe. Anyways here are a couple of pictures of the difference.
