OK I am very new to this, but any info on my ford focus would be helpful. I cant find anyone that has the right answers. I bought my car in NY and im guessing it is a 2.0. First question is, will I get better proformace changing the air intake, Apparently I have a lifetime filter, not even sure what that is. I am also going to be changing fluids and I have a manual trans and not really sure what is supposed to be used, and it seems ford dealers are not even sure. Anyhow any info on this car would be helpful.