ragemachine
08-02-2010, 07:53 PM
i have had my 09 yfz 450r for only 2 wks. the first thing i realized was how expensive it was getting an exhaust and re-programmer. i have already found exhaust on sale, but not sure about re-programmers. found HMF optimizer on sale. can anyone give me any info about it. thanks for any help. i do race but nothing crazy, all i want is exhaust, air-filter, programmer.