Increase horsepower to your C5 engine with this mass airflow sensor. This sensor is a direct OEM replacement and will not void your factory warranty. By improving your mileage, throttle response, and horsepower this sensor will add the performance upgrade you need. Gives your engine 5 horsepower and a 60% airflow increase over stock sensors. Comes calibrated and includes instructions with all hardware. Install with basic hand tools in about 10 minutes.