EPROM, for model years 1990~95 ZR-1 LT5. This Prom has been erased, reloaded with the most current GM calibration for the Customer specified year model and verified.
The following is a list of various GM Part Numbers which have been associated with ZR-1 LT5 calibrations. The last PN for each year being the latest calibration released for a given model year.
Jerrys Gaskets DOES NOT sell custom calibrations
NOTE: This is a USED GM Prom (EProm) which has been thoroughly tested by Jerrys Gaskets.