Thread: K&N air filter
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Old 07-07-2010, 09:19 PM   #9
Mike Mac
G8 Specialist
Yamaha
 
Join Date: Jun 2009
Location: Phoenix
Posts: 7,799
Default Re: K&N air filter

Reid, at 350', you can take advantage of good air, and make all kinds of power! You might start with at least an .046 drill bit if you still have the stock muffler on it and the K&N. If the muffler is moded, then your out of my realm of knowledge.
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