Dr. D Yamaha YFZ(R) 450 Exhaust

Dirt Wheels Quote August 2004 YFZ Exhaust Shootout (12 different exhaust companies) "With quality, weight and price taken into consideration, the Dubach system is the clear winner" "With its low price, easy installation, strong power figures and music to our ears sound numbers, the Dubach Racing quiet exhaust system is the winner of the Yamaha YFZ450 slip-on pipe shootout. Congratulations." Dirt Wheel Quote “it feels like you are riding a highly modified motor when running the Dubach system.” “It pulls amazingly hard off the bottom and super strong all the way through the mid and top end” Overview Jetting: 172 main, needle in the #6 position. Run with the airbox lid removed. Weight: DRD 5.32 lbs Stock 9.80 lbs db level: DRD db Quite Core insert 94.5db Stock db Performance gains: Increased bottom and mid-range power which carries through the top end. Increasing power and dropping nearly 4 lbs. of excess weight is definitely a winning combination. Comes with a removable spark arrestor.