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.
For more information, including install related information, see our Resources section.

All kits come with a connector and terminals and a 90 boot.

Your choice of the following mounting options;

M12 mounting stud (common Toyota)

M8 hardware

M10 hardware (modified sensor)