The truck does have the throttle body fuel injection and I also have a large tranny cooler.
The actual chip product number from Hypertech is 129152.
When I called Hypertech this morning they said that that chip should work fine with the headers. Although they did say to tune the engine, the original Chevy chip needs to be in to set the timing correctly. After that is done, the Hypertech chip needs to be reinstalled.
Do you know if this is the same procedure for the Jet Performance chip?
I also really appreciate those service bulletins. The recall work has all been done and I'll have to check the maintenance records for any of the other problems.
You would not believe the maintenance records that I got with the truck. The former owner was an major airline pilot and he kept records as if it were a jumbo jet!