What Type of Fuel Mileage Savings will the Airaid Throttle Body Spacer # AR1002 Give my 2004 F-150
Will spacer fit 2004 f150 heritage with 4.2l v6? Engine is in perfect tune. What is reasonable mpg at 55mph with spacer? what if no increase is made? Is refund of cost given? | While I am normally very skeptical of fuel savings products...
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