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PROJECT ATV: Duncan YFZ450R - Dirt Wheels Magazine
https://dirtwheelsmag.com/duncan-racing-yfz450r/
Duncan Racing International, Inc. 1073 Kenney Street, Suite A Santee, CA 92071 (619) 258-6310 www.duncanracing.com MACHINE: Quad …
Yamaha YFZ 450 R '09-'21 Vortex ECU — Duncan Racing
https://www.duncanracing.com/vortex/vtu-374r
YFZ 450R ECU in STOCK #VTU374R- '09-'21 Yam YFZ450R Vortex ECU $749.95 #VT-SW05- Handlebar Switch $69.00 optional Key Features • More Power • Smoother Power Delivery • Pre Programmed with 10 Hi Performance Fuel/ Ignition maps (maps changed by adjustable dial on ECU) • Maps developed on the D ... • Interface to Vortex Data Acquisition ...
Yamaha YFZ 450/YFZ 450R Hi Performance Camshafts — Duncan …
https://www.duncanracing.com/4-stroke-engine/289-x12
Yamaha YFZ 450/YFZ 450R Hi Performance Camshafts. 649.95. Note: This is a specialty product and is not currently available for purchase online. Please call Duncan Racing International and a DRI staff member will assist you by collecting the required specifications and …
Yamaha YFZ 450R (EFI) HP4 Valve Train Kit - Duncan Racing
https://www.duncanracing.com/4-stroke-engine/yamaha-yfz-450r-efi-hp4-valve-train-kit
Duncan Racing International's HP4 Valve Train Kit is designed to give you the utmost in performance and reliability by using the most advanced equipment and techniques in the industry. ... Lift: .350/.340", Duration 250°/253°) *DRI uses Billet Camshafts ONLY for the YFZ 450R. **Customer must send in stock cam cores so DRI can remove IN and EX ...
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