I heard that the Stillen Gen 3 air filters last 20k miles, but I guess it really depends. I would definitely think b/w 10-20k miles, so I would go for the avg. (15k).
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l Meisterschaft Full Cat-Back Exhaust l F. I. Resonated High Flow Cats l Stillen Gen 3 l M370 Intake Manifold l UpRev l JWT Clutch & Flywheel l ZSpeed HD CSC l Stillen 19 Row Oil Cooler l ZSpeed Powercoated Under Tray l GTSpec: 6, 4, 2 Point Brace l
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