aRacer AF2 Professional Wideband O2 AFR Module is the new and improved wideband AFR module that now comes included with a Bosch LSU 4.9 wideband oxygen sensor! The AF2 is a better upgrade over the older AF1 model! The cable splitters are NO longer needed! This simplifies everything! The AF2 is the latest and greatest AFR module from aRacer. 
 
NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLES