I think that 997.2 TT will  win about 0.5 sec due to gearing and 0.1-0.2 sec due to more hp up to 200.

997.2 TTS will win additionally 0.2-0.3 sec up to 200.

 

So we will see about 11.5 sec for 997.2 TT and 11.2-11.3 for 997.2 TTS