Jet Performance Products 6 Pak Computer Chip 290166P Computer Chips & Performance ECM

6 Pak Computer Chip State Legal: 50 State CHEVROLET GMC C1500 PICKUP C2500 PICKUP K1500 PICKUP K2500 PICKUP CHEYENNE SCOTTSDALE SIERRA SIERRA SLE SIERRA SLX SIERRA XC SILVERADO WT 1990 4.3L LB4 (262) Vortec GAS with Selectable on the fly Jet Performance Products 6 Pak Computer Chip 290166P Computer Chips & Performance ECM