When I removed this part from my car, all I did was replace it with a large enough fresh air hose. That way I still have the air box conneccted tothe cold air intake. As for calibrating when I did have it installed, I did it, and it wasn't too difficult. If you look closely at the side of the unit, and you'll see that the hinge for the flap protrudes out. On the hinge there's a mark, and out from this on the box assembly are the letters "C" & "H". I just set the thing out in the sun for a couple of hours durring the heat of the day. Once it was hot, I just turned the knob until the line matched up with the "H", and the cold air side was closed. After that, I really didn't see that much of a difference. Granted though, this was before my car had a tune up. -Robert vin 6585 "X" --- In dmcnews@xxxx, "stupadazzo2002" <mopar2me@xxxx> wrote: <SNIP> > Has anyone addressed this part before and is there anything we can do > to increase it's flow outside of replacing it? Is there a larger > replacement somewhere? What do you do with this part on the Stage II > engines? > > Part two: How is this thing calibrated? I notice there is a > functioning adjustment lock nut at the base of the sensor. > > Chris > (DML lurker since '96) > #3876