We really didn't have any trouble installing my Focuz header (notice the singularity of the noun
). You will have to keep the OEM pipe that is just in front of the cat though, as there is no flexpipe piece (as stated in my previous post). It took some manuvering around the alternator.... but it fits. Just make sure you tighten down your manifold bolts to proper spec ft/lbs and that the gaskets are flush with the metal. Take your time and do it right.