I beg to differ. I DO know. I’ve done it. I set up dual knock sensors on my j35 and tuned them in the AEM infinity ECU. And I went through hell trying to locate them. After a **** ton of research and 3 different locations, the best place for them is exactly where HIS tuner told him to put them. Because he’s likely done it once or twice also and suffered the same frustration I have.