[JFP in PA]

The optional Sport Chrono package changes several things like the suspension settings as well as the shift characteristics on the PDK cars. On the manual cars, where the computer has no control over the gear box, the package does not add anything to how the trans shifts, only the suspension changes. From Porsche literature:

Benefits of Sport Mode activation:
•Sporty tuning of engine Motronic software, PASM, PSM, Tiptronic Transmission (if applicable), all-wheel-drive system (if applicable).
•For vehicles with factory Sport Exhaust, the new Sport button would control exhaust settings.
•For vehicles with PCM, new personalized settings can now be controlled. Including memory for lights, wiper, climate control, & door lock settings.
•For 2009-2012 vehicles with PDK, you get a Sport Plus button with Launch Control and Race Track Shift Strategy. For base model Cayman & Boxster models, launch control is not included.
•For Turbo models, Overboost is also added for additional acceleration.


When the Sport button on the center console is selected, the engine management system enhances the engine response. A modified throttle map relates the pedal angle in the footwell to a much wider angle of opening on the throttle valve. Throttle response is significantly more immediate, and, in the higher gears, a hard rev-limiter helps protect the engine under acceleration.

Vehicles with the optional Porsche Active Suspension Management (PASM) also switches to Sport mode for harder damping and more direct steering, and, therefore, better road holding. For maximum dexterity, PSM can be set to standby while the car is still in Sport mode. For safety, it is set to intervene automatically only when ABS assistance is required on both the front wheels.

For Tiptronic or PDK transmissions, gearshift points are delayed until the upper rev range. The shift times are shorter, the gear changes sportier. At low rates of deceleration, even with high engine speeds, the system initiates a swifter brake-induced downshift. In manual mode, gear changes are faster and more dynamic. In Sport mode, the trigger threshold for PSM is raised for increased longitudinal and lateral dynamics. Agility is enhanced under braking for corners with PSM, enabling greater handling response under braking and exit acceleration, especially at low speeds.