Knock Sensor Kit
Take advantage of your ECU's knock control strategies by using a Knock sensor kit (or two depending on your engine). Factory knock sensors are usually old, unreliable and frequency tuned (think narrow band O2 sensor compared to a wideband). These are genuine Bosch KSP-4 sensors that can measure from 3 to 25 kHz, basically it can work with any engine and mods.
All kits come with a connector, terminals, and a 90' boot.