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- In Stock Items. Ships Today. (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
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Hypertech ThermoMaster Computer Chips

4.1 out of 5 stars 30 Customer Reviews

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!

Showing In Stock Items. Show All 66 Items.

Results 1 - 25 of 66

Hypertech ThermoMaster Computer Chips for 1991 CAMARO, FIREBIRD - 151322

Computer Chip/Module, ThermoMaster, Chevy, Pontiac, Each

Part Number: HYP-151322

Not Yet Reviewed

Estimated Ship Date: Jan 30, 2026 if ordered today

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Estimated Ship Date: Jan 30, 2026 if ordered today

Hypertech ThermoMaster Computer Chips 121122

Computer Chip/Module, ThermoMaster, Chevy, GMC, Pickup, Each

Part Number: HYP-121122

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Hypertech ThermoMaster Computer Chips for 1990-1991 C1500 - 120092

Computer Chip/Module, ThermoMaster, Chevy, Pickup, Each

Part Number: HYP-120092

Not Yet Reviewed

Estimated Ship Date: Jan 30, 2026 if ordered today

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Estimated Ship Date: Jan 30, 2026 if ordered today

Hypertech ThermoMaster Computer Chips for 1991 CORVETTE - 151392

Computer Chip/Module, ThermoMaster, Chevy, Each

Part Number: HYP-151392

Not Yet Reviewed

Estimated Ship Date: Jan 30, 2026 if ordered today

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Estimated Ship Date: Jan 30, 2026 if ordered today

Hypertech ThermoMaster Computer Chips for 1991 CAMARO, FIREBIRD - 121322

Computer Chip/Module, ThermoMaster, Chevy, Pontiac, Each

Part Number: HYP-121322

Not Yet Reviewed

Estimated Ship Date: Jan 30, 2026 if ordered today

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Estimated Ship Date: Jan 30, 2026 if ordered today

Hypertech ThermoMaster Computer Chips for 1991 CAPRICE - 121462

Computer Chip/Module, ThermoMaster, Chevy, Each

Part Number: HYP-121462

Not Yet Reviewed

Estimated Ship Date: Jan 30, 2026 if ordered today

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Estimated Ship Date: Jan 30, 2026 if ordered today

Hypertech ThermoMaster Computer Chips 121012

Computer Chip/Module, ThermoMaster, Chevy, GMC, S-Series, SUV/Pickup, Each

Part Number: HYP-121012

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 30, 2026 if ordered today

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Estimated Ship Date: Jan 30, 2026 if ordered today

Hypertech ThermoMaster Computer Chips for 1991 CAMARO, FIREBIRD - 121342

Computer Chip/Module, ThermoMaster, Chevy, Pontiac, Each

Part Number: HYP-121342

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Hypertech ThermoMaster Computer Chips 121262

Computer Chip/Module, ThermoMaster, Chevy, GMC, Pickup/SUV, Each

Part Number: HYP-121262

Not Yet Reviewed

Estimated Ship Date: Jan 30, 2026 if ordered today

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Estimated Ship Date: Jan 30, 2026 if ordered today

Hypertech ThermoMaster Computer Chips 121282

Computer Chip/Module, ThermoMaster, Chevy, GMC, Pickup, Each

Part Number: HYP-121282

Not Yet Reviewed

Estimated Ship Date: Jan 30, 2026 if ordered today

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Estimated Ship Date: Jan 30, 2026 if ordered today

Hypertech ThermoMaster Computer Chips 121292

Computer Chip/Module, ThermoMaster, Chevy, GMC, Each

Part Number: HYP-121292

Not Yet Reviewed

Estimated Ship Date: Jan 30, 2026 if ordered today

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Estimated Ship Date: Jan 30, 2026 if ordered today

Hypertech ThermoMaster Computer Chips for 1991 CAMARO, FIREBIRD - 121352

Computer Chip/Module, ThermoMaster, Chevy, Pontiac, Each

Part Number: HYP-121352

Not Yet Reviewed

Estimated Ship Date: Jan 30, 2026 if ordered today

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Estimated Ship Date: Jan 30, 2026 if ordered today

Hypertech ThermoMaster Computer Chips for 1991 CAMARO, FIREBIRD - 121372

Computer Chip/Module, ThermoMaster, Chevy, Pontiac, Each

Part Number: HYP-121372

Not Yet Reviewed

Estimated Ship Date: Jan 30, 2026 if ordered today

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Estimated Ship Date: Jan 30, 2026 if ordered today

Hypertech ThermoMaster Computer Chips for 1991 CORVETTE - 121382

Computer Chip/Module, ThermoMaster, Chevy, Each

Part Number: HYP-121382

Not Yet Reviewed

Estimated Ship Date: Jan 30, 2026 if ordered today

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Estimated Ship Date: Jan 30, 2026 if ordered today

Hypertech ThermoMaster Computer Chips for 1991 CORVETTE - 121392

Computer Chip/Module, ThermoMaster, Chevy, Each

Part Number: HYP-121392

Not Yet Reviewed

Estimated Ship Date: Jan 30, 2026 if ordered today

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Estimated Ship Date: Jan 30, 2026 if ordered today

Hypertech ThermoMaster Computer Chips for 1991 BERETTA, CORSICA - 121402

Computer Chip/Module, ThermoMaster, Chevy, Beretta, Corsica, Each

Part Number: HYP-121402

Not Yet Reviewed

Estimated Ship Date: Jan 30, 2026 if ordered today

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Estimated Ship Date: Jan 30, 2026 if ordered today

Hypertech ThermoMaster Computer Chips for 1991 CAVALIER, SUNBIRD - 121412

Computer Chip/Module, ThermoMaster, Chevy, Pontiac, Each

Part Number: HYP-121412

Not Yet Reviewed

Estimated Ship Date: Jan 30, 2026 if ordered today

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Estimated Ship Date: Jan 30, 2026 if ordered today

Hypertech ThermoMaster Computer Chips for 1991 CAVALIER, SUNBIRD - 121422

Computer Chip/Module, Street Runner Thermo Master, Chevy, Pontiac, Each

Part Number: HYP-121422

Not Yet Reviewed

Estimated Ship Date: Jan 30, 2026 if ordered today

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Estimated Ship Date: Jan 30, 2026 if ordered today

Hypertech ThermoMaster Computer Chips for 1991 BERETTA, CORSICA - 121432

Computer Chip/Module, ThermoMaster, Chevy, Beretta, Corsica, Each

Part Number: HYP-121432

Not Yet Reviewed

Estimated Ship Date: Jan 30, 2026 if ordered today

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Estimated Ship Date: Jan 30, 2026 if ordered today

Hypertech ThermoMaster Computer Chips 121042

Computer Chip/Module, ThermoMaster, Chevy, GMC, C/K-Series Pickup, Each

Part Number: HYP-121042

Not Yet Reviewed

Estimated Ship Date: Jan 30, 2026 if ordered today

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Estimated Ship Date: Jan 30, 2026 if ordered today

Hypertech ThermoMaster Computer Chips 121052

Computer Chip/Module, ThermoMaster, Chevy, GMC, C/K-Series Pickup, Each

Part Number: HYP-121052

Not Yet Reviewed

Estimated Ship Date: Jan 30, 2026 if ordered today

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Estimated Ship Date: Jan 30, 2026 if ordered today

Hypertech ThermoMaster Computer Chips for 1991 CAPRICE - 121452

Computer Chip/Module, ThermoMaster, Chevy, Each

Part Number: HYP-121452

Not Yet Reviewed

Estimated Ship Date: Jan 30, 2026 if ordered today

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Estimated Ship Date: Jan 30, 2026 if ordered today

Hypertech ThermoMaster Computer Chips for 1991 GRAND AM - 221502

Computer Chip/Module, ThermoMaster, Pontiac, Each

Part Number: HYP-221502

Not Yet Reviewed

Estimated Ship Date: Jan 30, 2026 if ordered today

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Estimated Ship Date: Jan 30, 2026 if ordered today

Hypertech ThermoMaster Computer Chips for 1991 CUTLASS SUPREME, GRAND PRIX - 221672

Computer Chip/Module, ThermoMaster, Oldsmobile, Pontiac, Each

Part Number: HYP-221672

Not Yet Reviewed

Estimated Ship Date: Jan 30, 2026 if ordered today

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Estimated Ship Date: Jan 30, 2026 if ordered today

Hypertech ThermoMaster Computer Chips for 1991 CUTLASS SUPREME - 321672

Computer Chip/Module, TherrmoMaster, Oldsmobile, 3.4L, Automatic, Each

Part Number: HYP-321672

Not Yet Reviewed

Estimated Ship Date: Jan 30, 2026 if ordered today

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Estimated Ship Date: Jan 30, 2026 if ordered today

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