aRacer AF2 Wideband AFR Module

The aRacer AF2 is the previous-generation wideband oxygen module. It does the same job as the AF3 — feeds real air-fuel ratio to the ECU for AutoTune, closed-loop fuel control and AFR logging — and is the module to buy if you are running an older aRacer ECU (RC Super 2, RC Mini 5, Mini 5 Plus 2, RC1 Super) that the AF3 does not support. It also works with the current Mini X / XX and Super X / XX.

Buying a new X / XX generation ECU? Get the AF3 — it is the faster module at the same price.

Features

• Wideband air-fuel ratio monitoring and logging
• AutoTune support on compatible ECUs
• Wideband closed-loop fuel correction
• Displays live AFR on the DG2 gauge or compatible aRacer displays

Compatibility

aRacer RC Super 2, RC Mini 5, Mini 5 Plus 2, RC1 Super, RC Super X, RC Super XX, RC Mini X and RC Mini XX. Requires a wideband sensor bung in the exhaust.

Specifications

• Part number: US-LEG-AF2
• Type: Wideband AFR / lambda module

Closed-course competition use only. aRacer ECUs and race electronics are sold for closed-course competition, off-road, dyno and development use. They are not CARB-approved or EPA-certified for pollution-controlled vehicles on public roads. You are responsible for complying with the laws that apply to you.

Dealer support

Mala Racing is an authorized aRacer SpeedTek dealer. Orders ship from California, and U.S.-based technical support, calibration help and the aRacer calibration database are available through aRacer ECU R&D of America. Not sure about fitment or which accessories you need? Email malaracingllc@gmail.com with your bike, year and mods before you order.

California Proposition 65 WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.