Here at Genius Parts we have taken the best features of all of the aftermarket intake systems available and incorporated them into this refined system. The entire intake is fabricated from 304 stainless steel, it will never rust or tarnish. The filter housing fits snugly around your factory equipped Smart intake ducting. What this means is your air filter is breathing the absolute coolest, freshest air at all times, no other system is superior in performance for any price! As with all of my products, I fabricate each and every one of these by hand on a jig so every one looks and fits perfectly. They come with a K&N filter which is washable and will never need replacing, they also come with installation instructions. This system has been developed with the information learned from dyno testing other systems as well as my 10 years of experience in the top forms of American auto racing. This system is good for at least 7HP as well as more MPG's!