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7.3L fuel mileage and exhaust
Hey guys, I have an 03 7.3L auto 4X4. it's pretty much stock except my exhaust, 4-inch straight pipe turbo back. I usually get like 13-15 mpg just everyday driving. and I might get like 17-19 highway. I change my fuel and air filter regularly. O and I have 285/75/16 tires just a little over stock. My question is I was going to order a AFE stage II intake today, and was wondering if you think it will help or what I can expect from it as far a mpg and power. My other question is do you think a muffler would help. Thanks in advance.
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