Knock Sensor kit for 911 w/993 sensors

Kit includes:

2x 993 OEM knock brackets/bars

2x 993 OEM Bosch knock sensors

2x mating connector kits with terminals and seals for the knock sensors

Drilling the heads is required to mount the sound bar to engines earlier than 964/993 3.6Ls. Knock sensor kit can be mounted on an assembled engine using an angle drill for the mounting holes in the heads.