2.1 WBX already uses a high flow filter and cold air intake

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> On Mar 27, 2015, at 12:52 PM, Mark Milby <obxmilby@GMAIL.COM> wrote:
>
> With what seems to be the easiest horsepower gain, I continuously wonder
> and search for a good cold air/direct air intake.
> Has anyone pieced together a K&N Filter system.
>
> Just wondering.
>
> --
> Mm