Saw the chip in Summit that says to get rid of the annoying 1st to 4th shift. How does it work? It is for Automatics I take it? Worth the money? Whats your opinions on these?

 

You can do the same thing with a 25 cent resistor from Radio Shack. All you do is pull the wire out from the sensor in the tranny, and the resistor keeps the SES light from coming on. It's for the six speed tranny, BTW.