You purchased an ICM, Inter Continental Missile?
It would make sense that many don't know what DUI means. It's not clear that DUI does.
http://performancedistributors.com/
Their web address says "performance distributors" and their home page says the same. You have to blow the Home page up 400% to read Davis Unified under the D.U.I. logo.
You got a new HEI Module. That is the term used by everyone. The only question anyone might ask, is it a 4 pin, 5 Pin, 7 pin or 8 Pin.