SKU: PSG216EVOAFRWB4.9-WO
MPN: 216EVOAFRWB4.9-WO
The Gauge EVO Wideband Air Fuel with Sensor in Red/Blue from PROSPORT GAUGES is an essential tuning instrument for serious engine builders, performance shops, and dedicated DIY enthusiasts. This wideband oxygen sensor-based system provides real-time air-fuel ratio monitoring, allowing you to optimize fuel delivery across the entire RPM range—critical whether you're running a naturally aspirated build, forced induction setup, or ethanol blend. Unlike traditional narrowband sensors that only signal rich or lean conditions at stoichiometric ratio, this wideband system gives you precise AFR values needed for maximizing power output, improving fuel economy, and protecting against detonation or lean-out failures.
The EVO wideband reads across a broader operating window—typically 8:1 to 18:1 AFR—using a heated zirconia oxygen sensor that samples exhaust gas composition with millisecond response time. The included sensor mounts in your exhaust system and communicates with the gauge display unit, which features a dual-color LED readout (red/blue configuration) for quick visual reference during tuning sessions or dyno pulls. The bright, legible display housing measures 7.5 x 3.3 x 11 inches and mounts easily on your dash, A-pillar, or custom pod; the lightweight 2.3 lb assembly integrates cleanly without adding significant weight or drawing excessive electrical current from your vehicle's charging system.
Street tuners, drag racers, road course competitors, and engine dynamometer operators rely on wideband feedback to dial in carburetor jetting, fuel injector sizing, and ECU mapping with confidence. Installation suits most gasoline-powered engines—carbureted, throttle-body injected, or direct-injection platforms—as long as you have accessible exhaust piping for sensor bung mounting. Pair this gauge with quality tuning software, a wideband-capable engine controller, or manual fuel-system adjustments to unlock repeatable performance gains and ensure your hard-built engine runs safely at the edge of its potential.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.
