Just bought your HKS A/F Knock Amp and want to get it up and running ASAP? Well you may need some of these accessories. An O2 sensor will help (might as well keep a backup) and you ay need a Senson...

HKS has released the 3rd generation AFK. The combined Air/Fuel and Knock monitor gives you the ability to monitor your A/F ratio as well as any knock that is occurring. By combining the new HKS AFK...