HOT CAMS EXHAUST CAMSHAFTS YAMAHA YZ 450F 10-

The 4170-EXBLD exhaust cam provides the lowest RPM torque. When used with the #4167-INBLD, the set makes a great torque set up good for Supercross and other riding situations which require good throttle response and increased partial throttle torque. Uses

>Exhaust Duration: 249 >Exhaust Lift: 8,64 >Exhaust Lobe Center 106,5 > 0,15 >Intake Duration: 0 >Intake Lift: 0 >Intake Lobe Center: 0 >Intake Valve Lash: 0