7 12, 2011 K&N Air Filter for Audi A4 (All Models) By fasmoto crew|2017-09-28T15:20:23+08:00December 7th, 2011|Categories: Air Intake, Engine, News, Products|Tags: Air Filters, Audi A4, K&N, Replacement|0 Comments High Air Flow with Excellent Filtration Designed to Increase Horsepower and Acceleration Washable and Reusable Will NOT Void Vehicle Warranty Lasts up to 50,000 miles before cleaning is required [...] Read More