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I am considering modifying my Air Cleaner Cover, and have a few questions about it.
1. How big of a hole do I need to cut?
2. Does it need to be a round hole, or a rectanular hole to match the shape of the cover?
3. What is the benifit of doing this, and will there be a noticeable perfomance increase, or am I just going to be ruining a perfectly good Air Cleaner?