Unleash a new level of aggressive styling and sound with Fabspeed's McLaren Valvetronic Sport Catalytic Converter Exhaust System complete with revolutionary 918-style top exit exhaust tips. Fabspeed's valved design allows you to uncork the full roar of the 3.8L twin turbo McLaren engine, but still gives you the ability to return to a more moderate level for cruising through the neighborhood by simply closing the valves.