i have a 02 7.3 with a full Banks kit but with a stock air box with a k&n filter. am i going to see a change in switching to aftermarket box.
You will see a difference if you go with a DIY(Do It Yourself) kit of a stage 2. I prefer the AFE stage 2 but everyone is entitled to their own opinion. You should see a small increase in fuel millage but more of difference with a louder turbo whistle and low EGTs. Kenny