I had to take out my airbox frees up the engine compartment considerably... I recently found a K&N filter hiding out in there. When I had it out I noticed that there was a date... 28 Juli 99. Obviously not made in the USA... but the date seems weird to me. My car was manufactured 7/98. Now how does a 7/99 aribox end up in a car produced a year earlier? Could it be I have more goodies than I thought?