The bar may not allow you to go through a turn any faster it will just feeling better when doing it although I'm sure it will help. I say this because you still have stock shocks, springs, and not sure what tires you have. Not sure if I have ever seen anyone ask "will this part allow me to go through a turn xx MPH faster" so I don't really know a proper answer, definitely not as easy as "yes, the lid will drop one-two tenths off your quarter mile time. And like you said, you don't plan on doing much suspension work so you might as well do the 35mm sway bar and get some improvement.

 

I have a stock SS bars, 32mm front and 19mm rear that you can have cheap if ya want. I even have new end links with poly bushings i'll give ya...