11.49 or faster requires a roll bar, especially if it is a NHRA sanctioned track. Private track rentals give more slack.

 

I had a tune, CM IC's, and Europipes added to my TTS. I have been experimenting trying to improve my times on a small runway on private property. My best run was two weeks ago 0-60 at 2.5 sec and 0-100 @ 6.1 sec. I use LC, AC off, Suspension Sport, and TC off. Temp was 64 degrees.
I have what I believe are Michelin Supersports. I have now found the infamous Trofeos and will have them installed when Florida's rain storm stops. I believe with the Trofeos my times will improve but to what level I just wont speculate. I think these are the best times posted for the TTS. I am getting a bit of wheel spin on launch and hoping the Trofeos will minimize or eliminate that. The next temp drop is in 7 days time and I will post my results along with the V-Box graph which I hav'nt tried to use yet (i guess its time to do some reading). Soon after I plan on taking my car to PBIR and giving it a go. I have noticed that the engine power/torque really drops off after 90-110MPH. We will see what happens. I may have CMS tweak my tune based on my findings in an attempt to gain more power at higher speeds/RPMs.

 

Somebody should sell faux roll bar kits made of styrofoam to avoid the hassle at tracks.