My version, installed on a 96 Saturn SL:
http://members.lsol.net/gop4evr/unlinked/100_3895.jpg
I removed the resonator and plugged the original intake tube. As you can see, I used plain old 2" pvc drain pipe and installed the IAT sensor in the new intake. The small diameter tube works well when driving for better fuel economy. I did not box it in to capture more heat around the intake manifold, but this seems to have a noticeable effect, and it is a clean installation.
My mpg has been slipping lately. It needs a thermostat and the plugs have enough miles on them, plus I have not been as attentive in my economy driving techniques of late. Lifetime average is still over 41 though, with a high of 49.6 on one long trip.
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Nels
Manitowoc WI
1996 Saturn SL, 5-sp manual
2011 Fiesta SFE sedan, 6-sp dual dry clutch Powershift transmission