I've noticed recently that I've been losing about 2 MPG on average on my fuel economy. And the performance of my car has been less than stellar lately. I'm wondering if it has something to do with my air filter. From what I was told the last time I went to get my oil changed was that the Service Agreement I purchased a year ago did NOT include air-filter replacement thus its been a year since I've had the air filter replaced. Their contention is that I only paid for oil changes and NOT complete regular maintenance. I find this to be yet another disappointment with the level of service that I have been receiving from my local Saturn retailer. Anyone else having this type of issue? Also I need some opinions, Are the Intake kits available out there worth the money or am I better off replacing the air-filter with OEM and waiting a few more months/years for the aftermarket to be better? As far as the service agreement is concerned I'm considering making Saturn reimburst me for the service contract since they haven't lived up to their end of the agreement.