Aspir3,
You do not need to track to feel the potential handling differences sway bars make.
They drastically change the handling characteristics of your car without sacrificing any comfort factors.
For instance, I notice that my car now doesn't understeer as much, and also takes longer before it understeers. I have the full set of Ultra Racing bracing and also the Sway bar from UR as well
Any improvements on the sway bar (thicker), like these Whiteline sway bars, will definitely help guide our Lancers through corners better.
Also, these bars (sway) have nothing to do with the OEM strut bar you see in the engine bay. These bars lie below the car pretty much embedded in the suspension.
Hope that answers your query.
-EXALTD-