Yes they will! But the question is by how much and how long will it take you to recover the expense.Originally Posted by IamJEEP
A CAI will give you more air intake and the exhause will move it out quicker, this effect is known to increase the mileage. The problem is that you will only pick up maybe 1 MPG if you are lucky and it will cost you an estimated $400 give or take to gain that 1 MPG. I will leave it too the math majors to determine how many miles it would take to recover the expense.
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