I'm selling a BMC air filter that has been used for approx. 1,000 miles. I installed it as my first mod and it definately improved the engine sound. After which I installed the ESS tune and still everything was fine. I then installed the Akra Evo Exhaust and that's when I noticed that the filter was causing too much engine noise from the front and I did'nt like it, so I replaced the stock filter and now it sounds good again. So this filter is for you if you don't plan to install an Akra Evo system. Like new and I will ship it for the asking price of $100.00.