I love the /noob btw. Ha!
Knock retard is a big hindrance of our cars. There are many threads on it so I would say searching would do you better than me trying to explain it all in a few words. Basically more knock= car goes boom. All cars knock, even stock ones. That's why we scan and that's why a good tune is the best mod. Check some of the stickys around here, there is some good info about knock.
Btw, headers kill some knock. They're great for reducing it to almost 0 on a stock car. Once modded though it will knock again.
