[J-Ri]

And have the air filter directly behind the radiator? That would defeat the purpose of the CAI after the thermostat opened. You'd probably have a noticeable increase in gas mileage due to the decreased density of the air (and therefore less fuel), but power would suffer greatly. A true cold air intake gets the air from below, in front of, or to the side of the radiator, and actually gets ambient temperature air. I have seen people make good looking CAIs out of PVC pipe. If your goal is to save money (whose isn't?), go that route, just be sure you attach it to something other than the throttle body so you don't have a 3 ft long tube banging around and twisting on it. Also be sure you drill a hole and install a grommet for the IAT sensor, I have seen all sorts of problems arise from letting the IAT sensor just hang. Also, use a good paper filter, the "high-flow" reusable ones let way too much dirt in. I would go with a larger paper filter, get the extra airflow and get the dirt out. Possibly one of the cone filters for a ford pickup? If it's good for 5.4 liters, it's good for 2.2!