I was wondering if I went with a non staggerd set-up would my brake and straight line stability, especially at high speed get better or worse?

What can I expect besides more grip in front and probably a more oversteer tendancy?

Thanks guys

 

Braking will get better (assuming you get bigger front tires and not smaller rears) and if you have any problems with the rear end getting light and squirrelly under hard braking then that might get a little worse. That's about all that changes in a straight line, and the understeer/oversteer is as you described it. The right spring rates and/or swaybar will make non-staggered feel much nicer.

 

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In general, you want to stiffen the front and soften the rear to keep the oversteer in check. Stiffening the front via swaybar and stiffening the rear via springs won't really change a lot, unless you're stiffening the front springs at the same time.

FWIW, I have 450lb front and 400lb rear springs, a stiffer front bar, and factory rear bar, and the car is still pretty oversteer prone.

 

only time you want to stiffen the rear springs is if you are removing the rear sway