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. Later generations of Electronic Control Units (ECU) eliminated calibration chips. Instead, engine tuning information is stored in the unit’s programmable memory. In addition to controlling basic engine functions, microprocessors now monitor and govern a wide range of systems, including the transmission, brakes, instrument panel, emission controls, and heating/air conditioning. For comparison, the code stored in an early chip would fill one page; now a typical ECU contains more than 1,600 pages of code!