Review on Engine Air Filter Washable Reusable Replacement Parts in Filters by Darryl Jennings

K&N filtration performance is second to none. My cars accelerate much better. Fuel economy could be a little better, but that's marginal. I don't have any equipment to test additional horsepower. But I will say that acceleration is much smoother and my cars shift better. Plus, cotton filters are better for the environment. One filter for the life of your vehicle instead of dozens of paper filters.