*Please confirm whether your car has an “OPF system” before placing an order
The exhaust valves make it possible to improve both torque and horsepower
We want to make sure you make the right decision when purchasing a tip option for your Boxster or Cayman
horsepower and torque can be increased significantly
+ Fits all Porsche Cayenne (9YA) 4
Kline Innovation Porsche 992 GT3 DECAT manifolds - OPF S4/S5 3.0T B9 *Please confirm whether your carThe Sound The first aspect of the stock exhaust that really holds the sound back, is the 600cpsi catalysts, and OPF filter, removal of these, and the addition of HJS high flow race catalysts, or our long tube header with decat design, opens the sound up significantly. the gases then pass through one of two transits in the silencer section. On valve open the transit is completely free flow for maximum sound, on valve closed, the gasses pass through our