If my carc is stock is there any tune that help me performance wise?
 

I know i sound dumb but im just being curious but ive been wanting to know if a tune with being stock will help me? If anybody is willing to answer this question for me please help

Gains in power? Not really.

What you will gain:
Slight increase in mpg.
Remove speed limiter
Smoother throttle response
Better oil cooling
Change rev limiter
2step
Anti theft feature as well as valet feature.

Did I miss anything?

^ +1. You won't see massive performance gains on a stock car but it will give you a smoother, better running car, with a little performance. And all the extra features noted above