Walker/EVO Foam Pre Filter Wrap

Fits the Hyper EVO Fuel Injection. Also fits other large oval boxes. Includes one-piece continuous foam wrap (no velcro needed).

Foam Prefilters are the best way to keep dirt out of the engine. We performed many back to back dyno tests with different foam types and chose this one because it shows no loss of horsepower. On track testing ensured that the foam captures almost all of the dirt before it can reach the cotton element of the air filter and saves time because it allows 3 or more races in between cleaning the air filter.