The new version of the factory 996 sport exhaust now comes with two differents systems to control the bypass valves:
This version comes with all the hardware so that the bypass valves open or close automatically depending on the speed of the car
Fits all the 3.4L and 3.6 models. (MY'98 to '03) except Turbo
No BHP improvement, just a much better sound
from £1200.00