Some of the clips on my air box were broken off or not sealing well and, as a result, my turbo was gone. It is pretty pricey for a new box. An open intake seemed more cost effective and opened up room for a coolant filter next to the overflow bottle. That is, once I moved the battery to the frame.
I ended up using 22deg and 45 deg elbows and 2 straight pieces of less than 12" (I believe). I had to make a z bracket to move the (ford updated) intake to turbo boot slightly. I used an amsoil filter (there is also a kn type). Model Eau4091 or KN RC5102, these have a stud on the top of the filter which was used to hold it down. It is a little tight but worked out pretty good.
Since I had big holes cut in my fenders for intersection lights (ambulance), I buggered out as big of a hole as I could in the inner fender and had a couple of louvered plates made to cover the holes on the fenders. I still have to finish the shield to block the engine heat.
Results: I couldn't tell you if you really gain that much performance as I replaced the turbo (1.0 A/R), deleted EBPV, replaced leaking uppipes, wrapped all the pipes, added a HP Oil crossover...and a bunch of other maintenance items.
It did open up a lot of space in the engine compartment which is nice for working on and lots of room for sound deadening. The turbo noise did increase but its not that bad.
