Wideband O2 Sensor Sniper TBI

The Wideband O2 Sensor Sniper TBI by HOLLEY is an essential upgrade for tuners and performance enthusiasts running carburetor or throttle body injection systems who demand precise air-fuel ratio monitoring. This wideband oxygen sensor provides real-time feedback across the entire fuel mixture spectrum, enabling accurate tuning rather than relying on outdated narrowband technology. Whether you're dialing in a classic hot rod, optimizing a street engine, or preparing for dyno work, this sensor eliminates guesswork by delivering the AFR data necessary for peak performance and reliability.

Wideband O2 sensors operate across a much broader range than traditional single-wire sensors, accurately measuring lambda values from rich (below 14.7:1) to lean (above 14.7:1) conditions. The Sniper TBI design integrates seamlessly with HOLLEY's tuning ecosystem and aftermarket ECU platforms, offering superior resolution for closed-loop and open-loop tuning applications. The sensor is designed to withstand high-heat exhaust environments, ensuring durability and reliability during operation.

Mechanics and tuners benefit most when transitioning carbureted engines to fuel injection or fine-tuning forced-induction systems where mixture accuracy directly impacts horsepower, efficiency, and engine longevity. Installation requires a bung in the exhaust manifold or head, making it a versatile choice for various applications. This sensor is compatible with HOLLEY controllers and standalone systems, enhancing its utility for performance tuning.