Air Filter and Keepitroostin Sticker Fits Honda Crf450 Crf450r Crf450x 2003-2008 Fits Honda Crf450 Crf450r Crf450x 2003 2004 2005 2006 2007 2008 Ready to Run, 6 mm outer foam,10 mm inner foam,Bonded dual stage 16 mm filtering thickness,Plush 13 mm sealing foam,Industrial high strength glued seams Provides maximum airflow and increased horsepower,Dual stage open foam matrix,Pre-oiled with Maxima FFT,Complete with disposable gloves, Dyno tested, race proven