Hypertech ThermoMaster Power Chip 124272 Hypertech Power Chips replace your OEM computers stock PROM which holds the settings that control your fuel flow and spark advance. With a wide range of chips available tuned for both stock and modified applications Hypertech Power Chips power upgrades tailor made to suit your needs. wo OverdriveState Legal 50 StateCalifornia Residents WARNING $173.99

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