Was posted by "Nick_USA" and for those who are members of PCGB thread is http://www.porscheclubgbforum.com/tm.asp?m=575895

For those who are not

"Not sure on UK pricing (US pricing ranges between $895 for a manual to $1695 for the Turbo with Tip/PDK coming in at $1195, all plus shipping etc). Requires dealer install and car coding:

New from Porsche! A factory software kit that adds a new dimension to your Porsche. By pressing a dash-mounted "SPORT" switch, you can chose between a stock mode and a Sport Mode with improved performance dynamics.

* 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 2009-2011 vehicles with PDK, you get a Sport Plus button with Launch Control and Race Track Shift Strategy.
* - 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. Fitment: 2005-2011 Carrera, Cayman, & Boxster, and 2006-2009 Turbo models without Sport Chrono or Sport Chrono Plus.

Note: Professional installation required by an authorized Porsche dealer, estimated installation time is 2-3 hours. Must acquire an enabling code from Porsche. "