AK's car is not detonating BTW. His father is a mechanic and has been in the auto industry for a very long time. He knows what it sounds like and he said there was no detonation. There apparently are two small holes drilled in his exhaust to allow moisture to run out of the pipes rather than rust them out and those holes were making some audible noise.
I think what was going on with that whole detonation thing is the haters (green with envy) who paid ridiculous amounts for their JWT program that aren't making anything close to that HP are simply trying to find some way to feel better. I feel sorry for them, really...