M7 Super Street Comfort Muffler is inspired and designed from GT racing in Japan.M7 has incorporated this new race inspired offset muffler and piping design into street applications,which offers a greater flow and higher-RPM power gains due to the less restrictive design.Increasing the amount of exhaust flow is the first step to increased engine performance and efficiency.The factory or standard exhaust system represents a restriction in the stock configuration.By designing a system that increases the mass and velocity of exhaust flow,it allows for a reduction in backpressure and thermal stress,thus unleashing the engine's potential for increased power,torque and responsiveness.This JASMA approved muffler came with adjustable tip and removable silencer.