I had one put in, cus there was none in there in the first place. I don't know that of all LX models are like that. Just knew that there were excess debris without it. and that egg crate thing was useless if you get the filter from napa....... it just useless in the first place. What they got lasy to put one in there, oh boo hoo "they don't pay me to put one in there"
2007 Ford Focus SES Sedan: Enkei j10 16", Yokohama S Drive, Lunchbox and Center Muffler Delete.