Rp930
Well-Known Member
I run the stock filter and gained 1 mpg.I installed this tune about 1500 miles ago. There is a definite boost in power and torque.
I have noticed a decline in gas mileage. 3 to 4 miles per gallon on highway and 4+ decline in city.
My dealer suggested that I not install the K & N filter. The head mechanic said they do not filter our small particles and would pre age the Turbo.
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