I've got one, it's a perfect fit on my AEI dryfilter. I don't think it's really necessary but it does give peace of mind. I don't believe it degrades performance to any significant degree.
Injen Pre Filter
Well, I have a CAI on the way eventually from the Simota GB and I was wondering if anyone was running one of the injen prefilters with there CAI and how it has worked out or at the very least gave them a little piece of mind.
Link if you dont know what im talking about:
http://www.injen.com/docs/products/listing.asp?pcc=rp
Link if you dont know what im talking about:
http://www.injen.com/docs/products/listing.asp?pcc=rp
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