THE GATEKEEPERS OF POWER When you are looking for that extra performance gain without having to empty your wallet, try our new Reed Valve Stuffers. These easy-to-bolt-on stuffers require no engine modifications and fit into your stock reed cages. How it Works The aerodynamic design reduces drag to increase flow velocity through the reed cage. The horizontal divider minimizes turbulence and directs flow to the intake ports for quicker acceleration, improved throttle response, and maximum power. These precision castings match your O.E.M. manifold and are made from an investment cast aluminum which will not become misaligned, warp, or bend. A true value in affordable performance!