1985 JEEP WAGONEER SJ  - Hypertech ThermoMaster Power Chip - 500012 - 500012 | 4WD.com
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1985 JEEP WAGONEER SJ  - Hypertech ThermoMaster Power Chip - 500012 - 500012

Hypertech ThermoMaster Power Chip - 500012

Hypertech | Part Number: HYP500012


  • Fitment: Direct Fit
  • Number of Power Level Settings: 1 Power Level Setting
  • Selectable on the fly: Is Not Selectable on the Fly


  • 1985 Cherokee XJ
  • 2.8L GM V6 engine
  • 2 barrel
  • Automatic transmission
  • California model only
  • 50 state emissions legal
  • Replace your OEM computer's stock PROM
  • Feature more aggressive timing and fuel curves for more power


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.


Question & Answers

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The key to the quality of Hyerptech's Jeep performance chips is the way Hypertech tunes. Hypertech was key in the development of the power tuning process. Hypertech's power tuning allows its chips to read the maximum amount of Jeep sensor data and, using sophisticated algorithms, finely tune the car's combustion processes to burn the fuel and air mixture in the way that is the most efficient for your Jeep application. Hypertech has been producing quality performance chips since its founding in 1985. The team of engineers at Hypertech spans the disciplines of engineering, computer science, and mechanical engineering. This wealth of knowledge allows Hypertech to develop Power Chips and Power Programmers that will drive the highest level of performance from your Jeep application. Shop Hypertech Now