Air Lift Performance 2015-2017 BMW M3/M4 Front Kit (5 Bolt)Explosive acceleration. Sharp, responsive handling. Featherlight, carbon fiber components. But what about that ride height? With Air Lift Performance, you can easily take your BMW M4 from that stock, street car look, to a sleek and low 'ultimate driving machine', all with the touch of a button. With Air Lift Performance, there's no worrying about bottoming out on speed bumps, scraping your undercarriage, or going up driveways. Our engineers made sure