Actually it would help. It's just like a computer. Say the video card's chip is on there w/o a heatsink. Then you put a heatsink on it. Your chip will run far cooler than it did before. Add a fan and even better. Yes, air flow would be great but if the cooler has a good design with fins then it will keep it cooler than w/o the cooler on the filter. It should aid in keeping it cool. A good test would be to feel the fins once it's on. If the fins are hot then it's probably doing the job. Yes the engine heat will have an affect on it but not alot.
John
