Looks like maybe a 2 mpg (6%) gain from just adding a cone filter. I've had this filter laying around for a few years from another car....didn't think it would help since I already had the restrictive cold air intake nozzle removed from the pipe going to the front...and also the resonator box was removed allowing air from under the hood into the filter box.
IAT is probably close to the same as before...around 10F higher at 70F...3-4F higher at 90F vs ambient....so it's not likely a warm air issue.
Took 1/2 tank or so for the ECU to adjust.
Filter is laying on a piece of foam....OD of intake pipe and the filter pipe are the same...thus the tape and clamp. Just clears the hood.
