One piece carbon fiber quarter windows for 981 & 718 Porsche Cayman. These windows were molded to be used in conjunction with our 981 & 718 GT4 Clubsport cold air racing intake in an effort to reduce intake air temperatures & deliver air to the engine that was closer to ambient temperatures on track. Unlike the Porsche 911, the Porsche Cayman breathes from the side and struggles to find colder air the hotter the track temperatures are. By feeding the engine from this point we were able to reduce the variance in the temperature of the air going to the engine by over 80%. What was once air going to the engine at 25F over and above ambient temps was now ONLY 5 degrees Fahrenheit over ambient. On the track and on the dyno we have proven that a 20F reduction in Intake Air Temperatures (IATs) from 115F to 95F equates to a loss of over 25rwhp! We spent many years racing the Cayman in professional competition and experienced first hand how much power the cars would lose half way through the race! Much like many other great ideas that John had simultaneously but never before Porsche, this was yet another. During the lockdown of 2020 we designed a one piece carbon fiber quarter window similar to the factory offering that achieves the same purpose but with a much sharper look and a much lower cost.
NOTE: Requires R&R of factory quarter window frames. Core exchange available soon. Can be used without our cold air intake system to deliver air to the rear of the car for helmet blower and cool shirt systems. 85mm diameter was chosen to step above the currently available 82mm throttle body offering from Porsche. 100mm variant available also.
Carbon Fiber Rear Quarter Windows | Buy Motorsports Performance Parts Online