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Hypertech 121112

Thermo Master Power Chip 1990 C10 SS 454

Hypertech 121112

533-121112

made in usa
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Hypertech 121112 Thermo Master Power Chip 1990 C10 SS 454 $144.99
Hypertech Thermo Master Power Chip
  • 1990 C10 SS 454
  • Automatic Transmission

  • Specifications:

    Quantity
    Sold individually
    Manufacturer's Part Number:
    121112

    Plug-In Performance for 1980's and 1990's GM Vehicles

    The premiere name in classic automotive ECM programming, Hypertech became famous with this replaceable power chip, or "PROM", for older vehicles. Before the OBD-II port, OE computer chips on the ECM had to be physically replaced. Hypertech's Thermo Master Chip is one of the best PROMs available. It can create instant power by adjusting spark advance and air/fuel ratio. Such adjustments can also increase fuel mileage potential with sensible driving. Designed for use with a PowerStat 160° or 180° Thermostat, Thermo Master Chips eliminate tuning guesswork... just plug in and drive.

    Does Hypertech 121112 fit your vehicle?

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    1991 CHEVROLET C1500 PICKUP

    • Fitment_Note: Cool Fan Switch Recommended If Equipped w/Electric Fans
    • SubModel: 454 SS
    • EngineType: ALL

    1991 CHEVROLET C1500 PICKUP

    • Fitment_Note: Cool Fan Switch Recommended If Equipped w/Electric Fans
    • Liter: 7.4
    • SubModel: CHEYENNE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1991 CHEVROLET C1500 PICKUP

    • Fitment_Note: Cool Fan Switch Recommended If Equipped w/Electric Fans
    • Liter: 7.4
    • SubModel: SILVERADO
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1991 CHEVROLET C1500 PICKUP

    • Fitment_Note: Cool Fan Switch Recommended If Equipped w/Electric Fans
    • Liter: 7.4
    • SubModel: WT
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )
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