I feel that it should already come with the Air Intake but I do understand that some people are only Fair Weather Riders. If the breathable waterproof/resistant cover keeps water from getting into your carburetor and engine then I guess it is completely worth the price.
Product does as expected, have no issue with product. The issue I have is the cost for such a small piece of fabric, seems a little high. The other issue is that you send this in a large box, that I could have placed about 100pc in it.