Just installed my new PSP 4-way chip and my first impresions are good. The truck feels stronger off the line to redline. The shifts are alot firmer, 100% different, but I would like them a little firmer. This is in no way a complaint just my opinion. I plan on going to the track this Friday and I will post results. The weather should be like it was the last time I was at the track so I should be able to compare slip.

I do have one question do I need to turn the engine off to change the program or can I do it on the fly? The programs I got was Towing, street, strip, and auto-x.

 

What does the auto-x program do?

Mike

 

If I remember correct it is the same as the street with more fuel up top and the shift are different. It will not downshift as soon so you will not break the rear end loose comming out of a corner.

 

You can "flip" on the fly, just not at WOT.