I wasn't even going to reply to this fucking fail of a post, but since it got bumped I will. 1st of all no shit older engines didn't have knock sensors. Tuning is not "one method fits all". Different engines, control systems etc. obviously play a part in that. Thorne's WRX DOES have a knock sensor and I will say again, that anyone that tunes a WRX and doesn't pay attention to the knock sensor is insane. Just because people tune piece of shit honda's without one doesn't mean the rest of the world can ignore them.
/end of rant