Hypertech Street Runner Power Chip - 159021

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

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. 1989 Astro/Safari 4.3 TBI Auto St. Run. (Ca)