J&S Electronics individual cylinder knock control system

[alltrac92]

I contacted John at J&S and he confirmed that the Vampire 3 channel will work for 1MZ-FE the price is $535
You can use it with stock or GM knock sensors. It retards the timing of the cylinder that is knocking. http://www.jandssafeguard.com/VampirePa ... mpire.html

[Eye8Pussies]

very interesting for people who are worried about knock! but very hefty price as well...

I like the concept that it works on- sounds very effective.