I just put the K&N air filter in ($49.99 at Murray's Discount Auto) last week. I was gettig 12.8 (actual and computer) mpg before and 15.3 mpg after the filter. I have heard that the Generation II does even better.
I put a k & N filter on mine with the Banks Stinger exhaust ( filter comes with kit). Haven't had time to really check for pwer or gas mileage. Does seem to pull my 5er somewhat better.Time will tell.
I have the Generation II kit on my F250 and it looks good it does come with a heat shield. I did not notice any performance improvements. I purchased it about 3 months ago from Performance Products. 1-800-752-6111
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1999 F250 4x4 Supercab, V10, Lariat, 4.30ls 6 National Spring Lift, Dual Shocks, 16.5 x 9.75 Weld Typhoons, 36x14.50 TSL Radials, K&N Gen. II, Magnaflow Dual Exhaust, Billet Grill, Line-X My Truck
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