BLOX Racing Performance Velocity Stack and Coupler Kit with 7" FilterThe BLOX Racing performance air filter kit features its 7" height performance air filter, a composite velocity stack, and silicone hose coupler with clamps. Kits are dyno proven to increase horsepower and torque. The dry element filter prevents any sensors from becoming soaked with oil that is normally associated with wet filter brands. BLOX Racing composite velocity stacks are injection molded from PA66 glass filled nylon. Composite significantly