I'm about to change the stock intake manifolds on my 2.5 to the upper and lowers from a 2003 taurus. Along with this I am switching to the taurus cams, and fuel injectors. Any words of advice before I start in on this? I hear that the egr may not fit under the hood too well, but I'm sure that's easy enough to fix. What else should I be aware of before I take her off the road?