I have a 97 SE-R that I turbo with a 2 1/2 exhaust, 2 1/2 down pipe..I just spun a bearing and waiting to see the extent of damage.. I just bought a 96 SE-R that I would like to put the 2 1/2 exhaust from my other car on and put a 3inch on the turbo one.. How hard is it? How do I handle the downpipe? If I wanted to put a header on Hows that??