Upgrade your Subaru’s engine monitoring with the Prosport Digital Wideband Air Fuel Ratio / Boost Gauge featuring a crisp white OLED display. Designed for enthusiasts who demand accuracy and reliability, this gauge delivers the widest AFR range on the market, from 10.0:1 to 20.0:1, using the latest Bosch LSU 4.9 5-wire heated O2 sensor. The clear digital readout combined with a bar-graph LED boost indicator ensures you get real-time, easy-to-read data at a glance.

This premium gauge includes a waterproof boost sensor capable of measuring from -30 vac to 45 PSI, silicone tubing, a 10-foot wiring harness, and a weld-in bung for seamless installation. The AFR gauge can optionally dim with headlights for night driving, enhancing visibility without distraction. It also offers a 0-5 volt output for data logging, making it perfect for tuning and performance tracking.

Ideal for Subaru WRX, STI, BRZ/86, and other turbocharged models, this gauge is a must-have for performance enthusiasts seeking precise air-fuel and boost monitoring. Shop now at Subimods and take control of your ride’s performance with confidence.