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Hypertech Thermo Master Power Chip 1987 Monte Carlo 305 (LG4)

Hypertech 12002


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Hypertech Thermo Master Power Chip 1987 Monte Carlo 305 (LG4) $122.99
Hypertech Thermo Master Power Chip
  • 1987 Monte Carlo 305 (LG4)
  • Automatic Transmission

  • Specifications:

    Sold individually
    Manufacturer's Part Number:

    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 12002 fit your vehicle?

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    • Liter: 5.0
    • SubModel: SS
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    My car has the TH200R4 and 3.73 gears. IS this CHIP set up for all of this? Therer are 1987 MC SS with 700R4 transmissions and 3.08 gears. I want to make sure before I buy this it will be specific to making my car work. The stock ECM died.

    Asked by: BIG DOG 98
    This chip is correct for the '87 Monte Carlo SS.
    Answered by: Jon Jegs Tech
    Date published: 2018-03-15
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    Some parts are not legal for use in California or other states with similar laws / regulations