Yamaha YZ450F Exhaust System for 2006-2009 Models Significant weight reduction over the

Significant weight reduction over the stock system

but not sure what to give them

and hit the trails like never before when you install a Barkers Full Single Exhaust System on your YZ 450F

And though these bad boys are both extremely competitive right out of the gate

Yamaha YZ450F Exhaust System for 2006-2009 Models Significant weight reduction over theSNAPSHOT: 10 25% Horsepower gain Significant weight reduction over the stock system 103 dB without quiet core Fits 2006 2009 Yamaha YZ450F Models Removable aluminum heat shield Eliminates the sudden fall off that afflicts most stock systems near redline Note: This exhaust has been updated to the round muffler THE FULL STORY: The Yamaha YZ 450F is a force to be reckoned with. With a mean 449cc 4 stroke DOHC engine, well balanced design, and incredible