oh god...please dont let his go into an ls/vtec debate...

but anyways, you guys who support the knock sensor(p30,p72)
did you know that the factory ecu only uses it under 5k rpm? anything over that an there is to much noise and vibration.

its at low to midrange rpm where the engine has the most load anyways

about the sencondaries, dont even bother with them, get a skunk mani, or somthing along the same lines

and if you really want a knock sensor, get a j&s safe guard.