Originally Posted by
GHuggins
Well, she does have the same clutch at least as far as gm performance list it. It does have free'er flowing exhaust from factory - only thing other than rearend or trans gearing ratio's listed as being different as far as power train goes... Only thing in the tune I can see that's really changed are a few of the idle torque controls, but these only should control surging and then the more important is the higher fuel pressure that it runs on. They shifted the entire axis to make it hit higher pressures sooner. Also appears it's got the ability to run on higher base pressure. Torque models as listed are exactly the same though.
I don't doubt that there are tables missing - there always are...