Co2 Cooled coil around my intake pipe. Id separate them from filter so engine doesn‘t get any co2 in it .
The incoming air will be coming in too fast to even be cooled significantly. You're better off with a cold air intake or ram air type of setup.
Not enought to measure. A coil around the intake would do little to cool the air. A coil inside the intake would obstuct the airflow and possibly ice up at idle. Merely rigging an intake that takes air from outside the hood would do more for you