When installing my 70mm TB I noticed that the internal diameter of the EGR spacer was slightly smaller at various points where it mounted to the Explorer intake. Do I need to be concerned with this? If so what should I do? Thanks...
You're probably fine - it just means that the opening in the intake is slightly larger than the egr spacer/throttle body opening. The problem is when the intake opening is smaller than the spacer/t-b. Then it interferes with the flow.