I bought this and it works great for detecting spark knock, but I no longer have a need for it. It's in excellent condition, only used it for maybe 1000 miles because I never drive my car. I paid $250 at Summit Racing.
Outside of Corona: "That sucks, peace out..." (jamie walks away)... "Sweeet, what we doin?" -Zac Tim's garage (prior to motor install): "Im gonna smoke real quick, that way if you fuck up I am already nicotined up" -Tim