There is an entire thread on the fitting of this zetec cougar header on our 'tours. I will dig it up and post here. It is well written and even has decent pics. There was at least one mod - had to do with a bracket. I seem to recall the header itself was straight forward bolt on (within my abilities) but the exhaust would need to be modifed or better yet, custom. This is beyond my capabilities, as I don't do pipe bending or welding. Just speaking for myself.