Well I've had my V2 almost since right after release which had to be over 5 years ago. Never touched the filter after install so I'm thinking it probably needs to be replaced/cleaned. I took a cursory look at ebay and saw a bunch of $50 filters. Is that the only way to go to replace these?

 

K&N Filter. easiest one you can by.

 

Or just get a k&n filter cleaning kit and go to town

 

Kragen/Autozone or online the best/cheapest way?

 

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Depends on where you can find a better deal truthfully