Review on uxcell Knock Sensor 22060-AA070: Enhanced Replacement for 1999-2000 Subaru Legacy Impreza Forester & 1999-2001 Subaru Outback by Mark Jefferson

Took about 10 minutes to install mainly because I soaked the screw with a PB blaster just in case. The Check Engine light was off and the car's acceleration improved significantly, no more hesitation when I hit the gas to head onto the freeway. When installing a new one, DO NOT OVERTIGHTEN THE SCREW. Tight is fine, you don't want to break the screw. Watch some videos about it, grab some extensions and a 12mm ratchet socket and you're good to go. There can't be a price here, the local store wanted almost 10x that price.