The following accessories adjust EFI fuel delivery as well as ignition timing over a wide range of settings to alter engine power characteristics to suit rider preference or track conditions. 2009 CRF450R PGM-FI tuning kit owners need to purchase the applicable CD-ROM and Sub Harness to update their PGM-FI Tuning Kits to fit the 2010-12 CRF450R and CRF250R.