Fabspeed Porsche 981 Cayman GT4 Fabspeed GT420 STREET Performance Package (2015-2016) Supersport Exhausts Adds noticeable serious horsepower and

Adds noticeable serious horsepower and greatly improved throttle response

Saves around 38lbs from the rear of the vehicle versus the factory rear muffler system

fits OEM Panamera 970 S air box for improved airflow and performance

Our esteemed tuner has extracted power from thousands of vehicles

Fabspeed Porsche 981 Cayman GT4 Fabspeed GT420 STREET Performance Package (2015-2016) Supersport Exhausts Adds noticeable serious horsepower andHP (whp): +40 TQ (ft lbs): +57 WT (lbs): 11 Fabspeed's GT420 STREET Performance Package is the premium solution to adding performance to your GT4 Spyder on the street. Delivering over 400 horsepower to the crank with easy to install bolt on upgrades, there is no better option for the GT4 owner seeking maximum power and performance while retaining catalysts. No need to swap engines or suffer long periods of downtime during a full engine re build.