Porsche 981 Cayman GT4 Fabspeed GT450 Race Performance Package (2015-2016) Select:Select Tip Option=Satin Black The increased exhaust flow helps

The increased exhaust flow helps tremendously at high RPM

6 liter flat-6 aircooled sportscar sound and significant power gain

Primary Catbypass Downpipes (Race Package) replace the restrictive primary factory catalysts with straight-through mandrel-bent tubing sections for maximum performance and exhaust sound

We also offer the Supercup Turboback without a catalytic converter for those looking for the most aggressive exhaust in terms of power

This upgrade requires you to send us your ECU for re-programming

Porsche 981 Cayman GT4 Fabspeed GT450 Race Performance Package (2015-2016) Select:Select Tip Option=Satin Black The increased exhaust flow helpsFabspeed's GT450 Race Performance Package is the final answer in 981 Cayman GT4 Boxster Spyder performance. Delivering over 400 horsepower to the wheels with easy to install bolt on upgrades, there is no better option for the GT4 or Spyder owner seeking maximum power and performance. No need to swap engines or suffer long periods of downtime during a full engine re build. Simply install the Fabspeed GT450 Package and begin outperforming the 911