2-5/8" A/F WB | For AEM

SKU: R25-WB3
Be the first to review this product
$165.90
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: R25-BV4

2-5/8" 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.
$246.91
Customize
SKU: R25-OP3

2-5/8" Oil Pressure Gauge | 100 PSI | Warning Light

Tracks oil pressure in real time using a high-accuracy transducer for precise lubrication system data. A settable warning light lets you define your pressure threshold and get alerted the moment it drops. Helps detect issues during startup, load, and performance driving. Precision stepper motor ensures smooth, stable readings.
$246.91
Customize
SKU: R45-TC3

4-1/2" Shift Light Tachometer | 8K RPM

Tracks engine RPM with built-in, high-visibility shift lights so you can hit your marks every time. Designed to work across a wide range of engines for clean, flexible installs. Precision stepper motor delivers smooth, stable, and accurate readings.
$259.96
Customize
SKU: R25-OT1

2-5/8" Oil Temperature Gauge | 100-300°F | Warning Light

Tracks oil temperature in real time with a matched sender for accurate, dependable monitoring during hard driving. Helps protect engine components by making rising heat easy to spot, while a built-in warning light adds a clear visual alert. Precision stepper motor delivers smooth, stable readings.
$187.76