Fitment Information BMW F82 M4 / F80 M3 Stock Bumper Front Wind Splitter Specs & Features Front Wind Splitter Carbon Fiber Reinforced Includes Support Rods (Stainless Steel) Fully functional undertray Completely covers the entire area below the front bumper Professional install required Product Description APR Performance Front Wind Splitters are reinforced with sheets of carbon fiber to make them ultra strong and functional. Each splitter also comes with stainless steel support rods to increase the rigidity and improve the aerodynamics by reducing flex.  Each splitters covers the entire area below a bumper to generate smooth air flow which creates more efficient downforce. Redline360 is an Authorized APR Performance Dealer and sells only the latest genuine and authentic APR Performance products.