In my opinion it's something about 10.000 €...give me a minute...

...

edit: 12.376 €

The package adds:

Raises power output to 381 hp. Includes modified cylinder heads, exhaust manifolds, ECU, additional radiator (only for manual transmission), carbon fiber air-cleaner housing, aluminium-intake system and sports exhaust system with pair of dual-tube tailpipes in individual design in chrome-plated stainless steel. Note: also in conjunction with Tiptronic S.