Aracer AF3 Professional Wideband AFR Module LSU 4.9 / 4.2 O2 galfer 3rd Gen Grom Factory Left

3rd Gen Grom Factory Left Rear Set

These will fit the non-radial version of the Nissin master cylinders

Allows you to monitor air/fuel mixture from your OEM existing narrowband o2 sensor located on the cylinder head

Splined Inner Diameter (valley to valley): 15mm

Available in Driving or SAE Fog/Wide beam patterns

Aracer AF3 Professional Wideband AFR Module LSU 4.9 / 4.2 O2 galfer 3rd Gen Grom Factory LeftNOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLES aRacer AF3 Professional Wideband O2 AFR Module is the new and improved wideband AFR module that now comes included with a Bosch LSU 4. 9 or 4. 2 wideband oxygen sensor! The AF3 is a better upgrade over the older AF2 model! The AF3 is the latest and greatest AFR module from aRacer. Compatible with BOSCH LSU 4. 9 and LSU 4. 2 sensors High exhaust temperature warning