The PowerCore 4 was developed to increase the horsepower and torque throughout the entire power curve producing a noticeable power increase that is useable and compatible with every style of riding. Aluminum construction and stainless steel Hi-Flo end caps make for the perfect balance of performance and strength. Aluminum performance muffler with durable stainless steel components. Completely redesigned for all late model applications. Removable spark arrestor included. Aluminum slip-on developed to increase the horsepower and torque throughout the entire power band.
Fitment:
2003 Yamaha WR450F Base
2003 Yamaha YZ450F Base
2004 Yamaha WR450F Base
2004 Yamaha YZ450F Base
2005 Yamaha WR450F Base
2005 Yamaha YZ450F Base
2006 Yamaha WR450F Base
- air_freight_prohibited:
- false
- not_carb_approved:
- false
- ltl_freight_required:
- false
- prop_65:
- Unknown
- part_type:
- powersports
- epa:
- Compliant
- carb_acknowledgement_required:
- false
- regular_stock:
- t
