Air filter shootout

I had noticed that the stock air cleaner was providing a restriction at the track, although I never actually tested back to back. Not hard to figure when you think that the stock lid only provides about 1/2 to 3/4 inch clearance around the bottom. I took and old air cleaner and modified a lid so the filter would be fully open. I run a K&N filter and I just swap lids when I get to the track.

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