aRacer AF3 Professional Wideband with Bosch LSU 4.9 O2 Sensor (NEW)
The aRacer AF3 Professional AFR Module is the latest innovation in air-fuel ratio tuning, designed to plug directly into aRacer ECUs—no additional harness required. It features the new Bosch 4.9 wideband O2 sensor for exceptional accuracy and ultra-fast response times. The AF3 also supports the use of alcohol-based fuels including E30, E50, and E85, making it ideal for high-performance builds running alternative fuels. Whether you're tuning a Honda Grom, MSX125, or any motorcycle that needs precise AFR data, the AF3 is a must-have for smooth, optimized performance! aRacer AF3 AFR Module works in conjunction with the aRacer DG-2 or aRacer SportD Multi-Function Display from aRacer with a 1 to 2 Harness. NEW AF3 Features: Faster: Response +10% improvement vs AF2 Support the use of alcohol fuel: E30, E50 and E85 Estimated high exhaust temperature warning (800c) Advanced O2 Heating Control & Over Temperature Protection Support Bosch LSU4.9 and LSU4.2 senors. Diagnostic for Module &