CAI's

Discussion in 'Performance & Fuel' started by chiefbkt, Mar 8, 2009.

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  1. chiefbkt

    chiefbkt New Member

    I am planning on purchasing a CAI and was wondering if anyone can tell me the difference between the K&N 57,63,73, etc. series CAI's? They all seem to be the same to me, except for price.

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