The Edelbrock Oxygen Sensor Harnesses are offered as a support item for all Pro-Flo 4+ EFI Systems where a customer wants to run a second O2 Sensor. This harness allows you to do just that while providing superior quality and durability. With this product, you'll be able to take your driving experience to the next level, all while getting the most out of your investment. Edelbrock Oxygen Sensor Harnesses are an easy and effective way to improve your vehicle's performance. These oxygen sensor harnesses can improve gas mileage, acceleration, and overall engine power by ensuring that the correct amount of oxygen is being delivered to your engine. Installation is simple, and no cutting or splicing is required so anyone can do it. Whether you're a seasoned mechanic or a first-time car owner, these oxygen sensor harnesses are a great way to get the most out of your vehicle.

Edelbrock, LLC, is a Torrance-based automotive aftermarket company founded in 1938. Vic Edelbrock Sr. was at the helm of the company's inception, entering the industry as a manufacturer of expert quality intake manifolds. His product development process involved a roadster in which he installed the parts he created and test-drove it around to see what improvements needed to be done to increase performance.