COBRA 4-1/2" Neighbor Haters® Series Mufflers - Black 6290RB Spring Conversion Kit class-leading resonance absorption and prevention

class-leading resonance absorption and prevention Feature proprietary materials with specific acoustical dampening and thermal insulation properties The frequency and location of the perforation patterns in the cores creates significant sound scattering in the mid frequencies

It offers full protection and high impact resistance

Designed to fit all 60-100cc modelsProtection on both sides of the front brake and clutch lever

backfiring on deceleration

For the Milwaukee Eight motor

COBRA 4-1/2" Neighbor Haters® Series Mufflers - Black 6290RB Spring Conversion Kit class-leading resonance absorption and preventionThe core design produces good power on the stock head pipes, but should be able to create even more when the rider decides to build more power with either a larger engine or standard industry hop up parts Provides enhanced sound and improved tunability for performance gains 50 State legal (declared manufacture replacement part) Made in the U. S. A.