Hypertech 128872: Computer Chip/Module, ThermoMaster, Chevy, Pontiac, Each - Hypertech ThermoMaster Power Chips replace your stock PROM, which holds the settings for fuel flow and spark advance. This is a Stage 2 chip that optimizes the spark and fuel curves for max performance. The ThermoMaster Power Chip is designed for use with a 160 deg. thermostat and premium pump gas (91 Octane or better). Maximize the performance of your ride with a Hypertech ThermoMaster Power Chip!.

Off my 1988 formula 305 tbi t5 car. Have not had on in along time been stored indoors packed up. Asking 60.00 obo I will cover the shipping. Located in Md 21617.

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