Aracer AF3 Professional Wideband AFR Module LSU 4.9 / 4.2 O2 galfer Protection against over-current

Protection against over-current

Splined Inner Diameter (valley to valley): 15mm

Standard optics lose light internally

Our 1 1/8” mounts are meant to be a direct OEM replacement for the stock 7/8” mounts and will replicate the OEM bar position and height

A dirty chain will run roughly

Aracer AF3 Professional Wideband AFR Module LSU 4.9 / 4.2 O2 galfer Protection against over-currentNOT 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