FYI, Kyle and I spoke on the phone about his constant KR problem that doesn't make sense. The possibilities that remain are one of the sensors, or his exhaust in some manner. He'* looking into better hangers for the exhaust, but for the price of a KR sensor, possibly causing false knock, it'* worth trying. I looked up the part numbers, he'* looking for confirmation and location, as I only have one sensor on my car, as compared to two on his.
Be warned, put goop on the threads when installing. Even a slightly loose thread-rattle in a knock sensor can cause the same problem. Think of these as tiny microphones.