aFe Aries Powersport Air Filters OER PG7 A/F PG7 MC - Yamaha YFZ450 04-09 Drivetrain>Diff Covers GM9-SPR6 kit features a Sport

GM9-SPR6 kit features a Sport pressure plate for a nice upgrade

775 lbs/in (45% Stiffer than Stock

Alternate muffler with Un-Notched necks is 40351

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aFe Aries Powersport Air Filters OER PG7 A/F PG7 MC - Yamaha YFZ450 04-09 Drivetrain>Diff Covers GM9-SPR6 kit features a SportWith seven layers of progressively finer mesh cotton gauze synthetic media between 100 percent polyurethane top and base, this high flow "oiled" conical performance filter provide maximum protection with highest cumulative filtration efficiency for severe duty environments. Washable and reusable for multiple cleanings, the tall open evenly spaced pleats provide excellent dust holding capacity for longer service cycle between cleanings. Integrated