A diffuser operates similarly to a venturi, creating a vacuum at the back of the car which draws air more quickly along the underside of the car. The air that is accelerated underneath the car creates negative pressure, pulling the car toward the road surface.
Our carbon fiber 818 diffuser is made of hand-laid carbon composite and fits all turbocharged 818S and 818R models. Naturally aspirated drivetrains also can use the diffuser, but they require relocating the exhaust outlet. The diffuser is supplied with aluminum strakes which help to smooth out the air flow and keep it contained within the diffuser.