What do you guys do/use for a knock sensor, use somthing like the HKS Knock A/F knock amp or does this have something built in?
also NOTHING else is needed for install correct?
also can any of the sensors from My current AEm ecu system be used
Im up in the air between the M600s1 or s2 and the HKS F-Con V-Pro what makes one better than the other ?


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