thewheelman Posted April 2, 2012 Report Share Posted April 2, 2012 No CAI on my car, but the factory filter is pretty dirty--several bits of hemi, chevy and toyhondissan stuck in it and I see K&N makes a replacement filter. Would you recommend this as a oem replacement or pass and go back to the fomoco filter? Thanks! Quote Link to comment Share on other sites More sharing options...
03 DSG Snake Posted April 2, 2012 Report Share Posted April 2, 2012 Any reason for not wanting to go with a CAI? It is definitely a bottle neck on these cars. From what I have read, the panel style K&N doesn't gain much if at all. So it depends on if you want a washable/reusable filter or a disposable Motorcraft. Quote Link to comment Share on other sites More sharing options...
Secondo Posted April 4, 2012 Report Share Posted April 4, 2012 If he gets the CAI, the car will need a new tune. I just bought the K & N filter for my girl's new 5.0, the box says they worked with Ford Racing to develop it and a graph clearly shows it flows more air than the stock paper one. There was an article in 5.0 Mustang magazine last year that showed a guy ran 11.99 in a brand-new Boss 302 and all he did was install slicks and the K & N replacement air filter. Quote Link to comment Share on other sites More sharing options...
thewheelman Posted April 5, 2012 Author Report Share Posted April 5, 2012 I don't want the cai and the tune that has to go with it. I'm just wondering if the k&n carries the same type of lean mix problems that the K&N cai does. The K&N cai says it doesn't require a tune, but everyone agrees that it does. Does the drop-in require a tune? If so, I'll just go with the fomoco filter. Quote Link to comment Share on other sites More sharing options...
Secondo Posted April 5, 2012 Report Share Posted April 5, 2012 I don't want the cai and the tune that has to go with it. I'm just wondering if the k&n carries the same type of lean mix problems that the K&N cai does. The K&N cai says it doesn't require a tune, but everyone agrees that it does. Does the drop-in require a tune? If so, I'll just go with the fomoco filter. It does not require a tune as the stock MAF housing is retained. Quote Link to comment Share on other sites More sharing options...
thewheelman Posted April 6, 2012 Author Report Share Posted April 6, 2012 Thanks! Quote Link to comment Share on other sites More sharing options...
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