The K&N air filter is a great, easy & inexpensive upgrade that will pay for itself 10x over as long as this filter is maintained & not neglected. It's proven technology, as simple as it may be, actually does allow a greater flow of filtered air to pass through your engine therefore igniting a "cleaner" spark. Because of it's cotton core this product should last as long as the life of your bike if taken care of properly. I must admit that K&N is the best intake filter in the market & has been for years. I believe this should be one of the 1st if not the 1st upgrade you make to your bike. It does have it's performance enhancing qualities but it's a sure way to be a "gateway" upgrade to get you inspired to make your bike your way.