Hypertech 154291 Street Runner Power Chip Fits select: 1994 CHEVROLET GMT-400, 1994 GMC SIERRA

Computer Chip Street Runner Power Chip; California Model Only; w/Overdrive; FEATURES: Designed For Daily Street Driving For Unmodified Vehicles w/Stock Thermostat Controls Engines Air/Fuel Ratio Controls Spark Advance For Max Power Potential Gas Mileage Improvements No Wiring Or Soldering Required Installs In Less Than 30 Minutes These Hypertech Street Runner Power Chips are replacements for your GM computer's stock PROM, or memory chip, which holds the factory settings that control your fuel flow and spark advance. These Hypertech chips replace the factory settings with performance-oriented ones. Hypertech Street Runners are designed for stock cars. They provide maximum power at wide-open throttle and delay converter lockup for smoother shifting, but don't affect the idle or part-throttle settings, so your mileage and emissions aren't affected. So, if you need more performance, then these Hypertech chips are just what you should get. 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.

Hypertech Power Chips are engineered for stock 1981-1995 GM vehicles. The Power Chip contains the Hypertech Power Tuning data that controls the engine's air/fuel ratio and spark advance for maximum power and performance, plus potential gas mileage improvements. Power Chips can be easily installed, using only hand tools. Street Runner Power Chips are designed for daily street driving or competition in unmodified vehicles using a stock thermostat. 1994 CK25/35 454 TBI Auto W/OD St. Run. (Ca) Fits Select: 1994 CHEVROLET GMT-400 8 Cyl 5.7 L 1994 GMC SIERRA 8 Cyl 5.7 L 1994 CHEVROLET SUBURBAN 8 Cyl 5.7 L 1994 GMC SUBURBAN 8 Cyl 5.7 L and more - add your vehicle to our fit widget to check