The paddle shifter is an option. The 6X comes standard with their outlaw shifter:
https://www.summitracing.com/int/par...1641/overview/
The two buttons on the backside of the pistol grip can be used for transbrake and nitrous, or, manual shifting. I did the research and it sounds like people have had issues with the paddle shift. Besides I think the pistol grip looks badass.
Perry