2007 speedART Porsche 911 Turbo Review Aero-Kit "BTR-XL" for 997 Turbo from speedART (Bi-Turbo Racer Extra Large) now has more down force and an improved aerodynamics with a complete front spoiler including additional front chin spoiler, design-fog lights and air outlet grill (carbon or PU). The rear spoiler with adjustable spoiler wing and air intakes (air ram system). Spoiler wing ...


