Okay gear heads - I'd like to hear some opinions. I have an older Jeep, an XJ Cherokee 2000. She still runs like a champ, and I credit that to me taking good care of her, especially in the past few years. In an effort to get as much umph out of her as possible and to keep her running for another couple of years, I've been upgrading a few parts. One upgrade I see and hear about often is swapping out the stock air intake with a K&N Cloth Air Intake Kit ([ame="http://www.amazon.com/57-1518-Fuel-Injection-Performance-Intake/dp/B000AP8ENU/ref=wl_it_dp_o_pC_S_nC?ie=UTF8&colid=1JO74HO7JXXGL&coliid=I2PAUSP06FPFAU"]K&N 57-1518 Fuel Injection Performance Kit Gen2 Air Intake Kit : Amazon.com : Automotive@@AMEPARAM@@http://ecx.images-amazon.com/images/I/41zmRErT14L.@@AMEPARAM@@41zmRErT14L[/ame]). However, recently I've been reading that for the cost, you really don't get any real performance. One or two people have told me recently that the whole thing is a gimmick and not worth the money. So what's the truth? Useful or not worth it? For what it's worth - this is for my daily drive vehicle. No off roading, just standard city driving.