Ok guys, I've Got to ask the question, and figured here was just as good a place as anywhere!
What's the best drop in filter for our Z?
K&N - $55 (one filter)
370Z / G37 K&N Drop In Filters
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HKS - $68 (includes 2)
http://www.z1motorsports.com/g37_370...oducts_id=3978
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OEM - $17.71 (one filter)
http://www.z1motorsports.com/g37_370...oducts_id=4003