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  1. 2011-2014 Mustang GT Tech
    I have a JLT cold air, SCT tuner, and flowmaster axle backs the car originally got 26mpg on the highway now its getting 22mpg highway does anyone know why im getting poor gas milage when i thought a tune and cold air where supposed to help improve it?
  2. 4.6L Talk
    what gives the 4V that unique sound over the 2V's? airflow? the ability to rev higher? bigger exhaust ports on the heads? i want mine to sound like a 4V, only reason i can think of is that 4V flow more air than 2V's what do you guys think?
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