Have a S and B Cold air intake box for sale. Came off a 2004 Dodge Ram 2500; opening on the intake box is 5" diameter. The "s" tube to turbo is 4" diameter. It takes a 7" diameter filter (not included) also you'll need to buy silicone coupler from a 5"-4". I'm sure you can find those on Amazon. Asking $150 OBO. If interested call/text Brandon 303 913 1016.