Take a look at that monster intake obstruction! You can't tell me that that EGR tube inside the body doesn't slow down airflow and cause turbulence! People who have modified their cars already have claimed significant improvements in horsepower and throttle response. I concur, though I haven't noticed any major power improvement - there seems to be no reason for the tube to be so long, although we may find ourselves cleaning the intake bore now and then as the exhaust gases may leave some carbon behind... we'll have to see. It's only $100 to replace the tube if I decide to reverse the modification, so there's very little risk involved.
See this web page for a detailed instruction series on modifying the EGR tube on the car. Note, that I have some additional comments to this modification if you are reading this page for information on mods:
If the bottom of the EGR tube is cut straight, it is going to cause air shear planes when the incoming air catches the rear of the tube. It's because the rear of the tube is counter-aerodynamic. Air will shear upwards into the tube and also downwards into the intake, causing an air barrier in the intake that will slow incoming air, and possibly causing a hot spot in the EGR system that could do some damage, as the tube became pressurized - this is why the normal tube has its exit hole at the rear of the tube, where the pressure is low.
The fix is easy. Just cut the rear of the tube a little lower, even an 1/8 inch is going to do the trick, causing a lower pressure zone at the rear of the tube and pulling EGR gases, out as well as stopping shear planes from occuring - I am fairly sure there will be *some* turbulence still but compared to the original EGR tube it should be minimal.