J&S Safeguard Version 0 "classic"
Includes brain, wiring connector, knock sensor, visual alert/meter, and audio alarm.
Don't confuse this unit with the Ultra Safeguard. All this unit does is look for knock and pull a user specified amount of timing advance.
http://www.jandssafeguard.com/index.html
$250 OBO + shipping
Includes brain, wiring connector, knock sensor, visual alert/meter, and audio alarm.
Don't confuse this unit with the Ultra Safeguard. All this unit does is look for knock and pull a user specified amount of timing advance.
http://www.jandssafeguard.com/index.html
$250 OBO + shipping