Fast-flowing, restriction-free 409 stainless steel is used to manufacture our Lamborghini Magnaflow & Borla exhaust systems. You receive reduced engine heat, less back pressure and additional exhaust scavenging with this cat back exhaust for Lamborghinis. Plus, shipping our Lamborghini single & dual exhaust is free. So, when you order Lamborghini accessories from our online parts store, you enjoy the best deal available anywhere.