How would a bigger-than-stock stabilizer bar affect the performance of a 3rd gen 4Runner/Surf with a 4" suspension lift?

I read Gadget's website on how it improved road handling, but that one was for a lowered 4Runner.

In my case (4" lift), will it increase/decrease stability, oversteer, & understeer?

I'm thinking of getting either Addco or TRD sway bars for both front and rear. So any advice is very much welcome and needed.

I will be using my rig onroad 95% of the time.

Thanks a lot.

 

I also have the Addco front bar on my lifted 4Runner.

I disconnect the front when I go off road. I have tried a few different ideas on what to do with the rear bar, but I have found that just using the stock rear bar and leaving it connected seems to work the best.

Gadget