2-1/16" A/F WB | For Spartan

SKU: R2-WB4
Be the first to review this product
$149.19
Monitors air/fuel ratio using input from external wideband controllers for accurate real-time tuning data. Integrated warning light provides clear alerts when AFR moves outside your set range. Supports 0.5–4.5V signals for compatibility with most aftermarket systems. Precision stepper motor ensures smooth, stable readings.
+ -
Order leaves our facility in about 2 Weeks

Air/Fuel Wideband Gauge keeps you informed on your engine’s air/fuel mixture using data from external wideband controllers. A built-in warning light provides immediate visual alerts when AFR moves outside your set range, helping you react before lean or rich conditions impact performance. Designed for seamless integration with aftermarket systems, it gives you a clear view of AFR during idle, cruising, and acceleration so you can dial in tuning with confidence. A precision stepper motor keeps the needle smooth and steady—no bounce, no guesswork. Built with a durable housing and solid aluminum bezel, it’s made for demanding driving conditions and long-term use. Made in the USA and backed for life.

Track-Tested. USA-Built. Backed for Life.

Key Features:

  • Integrated Warning Light — settable alerts for lean or rich AFR conditions
  • Wideband Controller Compatible — works with AEM, Innovate, Spartan, and more
  • 0.5–4.5V Signal Input — flexible integration with external systems
  • Precision AFR Monitoring — ideal for tuning and performance setups
  • Microprocessor-Driven — real-time accuracy
  • Stepper Motor Precision — smooth, accurate pointer
  • Weather-Resistant Build — built for street, track, and off-road
  • Made in the USA — backed by a lifetime warranty
Download Instructions
Product reviews
Only registered users can write reviews

Customers who bought this item also bought

Customize
SKU: R2-BV4-REV

2-1/16" Boost/Vac Gauge | 30 inHg to 30 PSI | Warning Light

Tracks manifold pressure across both vacuum and boost for full engine performance insight. Helps you follow engine behavior from idle to load to identify leaks or tuning issues early. A built-in warning light alerts you when pressure moves outside your set range for added protection. Precision stepper motor ensures smooth, stable, and reliable readings.
$230.20
Customize
SKU: R2-BV3

2-1/16" Boost/Vac Gauge | 30 inHg to 20 PSI | Warning Light

Tracks manifold pressure across both vacuum and boost for full engine performance insight. Helps you follow engine behavior from idle to load to identify leaks or tuning issues early. A built-in warning light alerts you when pressure moves outside your set range for added protection. Precision stepper motor ensures smooth, stable, and reliable readings.
$230.20
Customize
SKU: R2-VC1

2-1/16" Vacuum Gauge | 30-0 inHg | Warning Light

Tracks manifold vacuum in real time to monitor engine behavior at idle, cruise, and deceleration. Integrated warning light provides clear alerts when vacuum moves outside your set range. Precision stepper motor delivers smooth, stable readings.
$230.20
Customize
SKU: R3-DG1

3-3/8" Dual Gauge | Water Temp + Oil Pressure

Tracks water temperature and oil pressure in one compact dual gauge for a cleaner dash and more efficient engine monitoring. Keeps two critical readings easy to track with smooth, stable response from independent precision stepper motors.
$297.96