i am currently running rear progess sway, and scion fx tower(thinking on going with tanabe), but wondering the ill effect of running a rear tower bar inconjunction with the listed above. And just for fun how about factoring in a lower subframe brace. Will i finally get the stiffness, and zero body roll. OR will i suffer understeer or the opposite. I am looking for complete control, when i turn the wheel i want responce, rigidness, and stiffness as far as cornoring.

Thanks

 

My guess is you won't notice much of a difference with the rear tower bar and brace, but you will with the rear bar. I have the Progress bar, too and I love it. Most strut tower braces don't seem to do much. I can't speak for the frame brace, but I'd guess you probably won't notice the difference unless you were were road racing.

 

more ridigity is better than very little or stock ridigity. if you are a mountain pass/weekend warrior all will be beneficial.

 

The stock design in the rear is quite stiff so I would use that money saved by not buying the rear brace and tower bar on something else. You won't really notice any improvement on what you already have. Mostly because the rear shock towers are not under any forces because the rear springs sit under the frame rails, the rear tower bar is mostly for looks and only hinders what you can carry in cargo.