Hypertech is a technology-driven company with a unique status in the aftermarket industry. Unlike other speed equipment manufacturers that produce hard parts like camshafts and cylinder heads, our core product is knowledge the ability to tune the complex computers that control essential functions in modern automobiles. We have invested in people, not machinery. The knowledge and skill of the Hypertech team are our most valuable assets. Our staff of engineers and technicians has degrees in a variety of disciplines, including electrical engineering, computer science, and mechanical engineering. Hypertech people know computers from the inside out! The Hypertech team is passionate about performance. We have racers, hot rodders, and performance enthusiasts on our staff. You'll find modified trucks and street machines in our employee parking lot. We build project cars and use our trucks for towing on weekends. We come from different backgrounds, but we have all learned to appreciate the tremendous power of electronic engine controls to improve performance on the street as well as on the race track. Hypertech is the technology leader in High-performance engine tuning computer-controlled vehicles. Electronic engine controls have evolved rapidly since their introduction in the early '80s. Hypertech has kept pace with these rapid advances in technology by developing power tuning products that take advantage of the capabilities of these electronic controls. Early automotive computers used replaceable PROMs or chips to calibrate the Electronic Control Module (ECM) for a specific engine, powertrain, and vehicle combination. Hypertech created the original Power Chips to recalibrate these electronic brains for improved performance. As the power of digital systems expands, Hypertech will continue to design and manufacture power tuning products that are on the cutting edge of technology.
  • External Coil

Application Summary:

Year Make/Model
1987 Chevrolet Camaro
1993-1995 Chevrolet Camaro
1987-1990 Chevrolet Caprice
1993-1995 Chevrolet Caprice
1992-1995 Chevrolet Corvette
1987 Chevrolet El Camino
1988-1994 Chevrolet G10
1988-1994 Chevrolet G20
1987-1988 Chevrolet G30
1994-1995 Chevrolet Impala
1988-1994 Chevrolet K1500
1988-1994 Chevrolet K2500
1987-1988 Chevrolet Monte Carlo
1987 Chevrolet P20
1987-1989 Chevrolet P30
1987-1988 Chevrolet R30
1989 Chevrolet R3500
1988-1994 Chevrolet S10
1988-1994 Chevrolet S10 Blazer
1987-1988 Chevrolet V30
1989 Chevrolet V3500
1987 GMC Caballero
1987-1988 GMC G3500
1992-1994 GMC Jimmy
1988-1994 GMC K1500
1988-1994 GMC K2500
1987 GMC P2500
1987-1989 GMC P3500
1987-1989 GMC R3500
1988-1990 GMC S15
1988-1991 GMC S15 Jimmy
1987-1988 GMC V3500
California Proposition 65 WARNING: Cancer and reproductive harm. Visit
Country of Origin (Primary) US
Emission Code Legal US
GTIN 00759609001160
Harmonized Tariff Code (Schedule B) 8511300080
Hazardous Material Code N
Life Cycle Status Code Available to Order
NAFTA Preference Criterion Code B
Prop 65 (C, R or CR) CR
Prop 65 - Short Label Prop65.JPG
Prop 65 Yes/No Yes
SDR Required Flag N
WARNING CA Proposition 65 Yes
WARNING CA Proposition 65 Message WARNING: Cancer and reproductive harm. Visit
Warranty Time 12

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Hypertech 4055 Replacement External Coil

Product Information

  • $75.65

The AAM Group™ Proposition 65
Proposition 65 warning graphic (For California Residents)
WARNING: Cancer and Reproductive Harm -