Just as a person relies on clean air to live, so does your go-kart. Replacing your old, dirty air filter with a new, clean go-kart air filter can help your go-kart regain some of that horsepower you've been missing. Since off-road conditions are often terribly dusty, it becomes even more important to replace your go-karts air filter. Some of the benefits of changing your air filter include better gas mileage and prolonging engine life. The air filter is the first, and last defense against the dirt and debris that can cause harm to your engine. Engine damage can occur from particles as small as a grain of salt. An air filter is one of the least expensive, and easiest to replace, maintenance components. So, do it yourself! Don't just buy one... buy two or more Chinese go-kart air filters, and keep your unit running at its' best.