Well, I swapped out my K&N FIPK and replaced it witht he stock intake and the sound seem to have gone away. I asked a friend of mine and he said maybe with the FIPK, my air/fuel was running a little thin, causing the pinging.

Is that possible? I thought the computer relearns if you unplug the battery when u change out the stock intake. Anyone else experience a similar problem with their FIPK?

Thanks,
David