my dealer told me that the OB make the car take RPM faster,but no much Hp,in fact the graph posted from CF explain that the car have more power under OB effect,but not much than maximum power..

so..i think that a Sport Chrono Turbo 997 TT sure from 0-100Km/h and on all other performance time(0-400mt,o-200km/h,etc) will be faster than stock,but the car will not have much HP than stock..