venom i hear the same think is not i thick it sound weird i know what you talking about i hear you .i only hear it when i stop and i'm stop i hear it and is very anyoing .man i told my friend he told me that i'm crazy and he don't hear anything so now i know i'm not crazy maybe a little i even buy 93 octan fuel but it don't make diffrence i still hear it i guess that's how those engine work.my friend told me that the i4 in2003 is crazy how they did it even when you hit the gas the timing advance up to 90 degrees by it self and i trust him he been honda tech for 5 years