sway bars questions

hi all, i recently purchased my third (yes, third!) prelude and its been a few years since the last one so i have some questions regarding sway bar choices. i have already put neuspeed sportlines and kyb agxs, along with neuspeed upper front tie bar (4-point) on the car. now its time for the sway bars. now, the car comes with factory sway bars which i dont know the size too (which i can look up no problem) but the part im forgetting is a larger sway bar in the rear will take care of understeer, while a larger sway bar in the front will take care of oversteer? or vice versa? also, what is the largest sway bar that i can SAFELY put in the front or rear without needing subframe braces or needing to worry about tear. id put in a subframe brace but cant seem to find one... maybe someone knows where to find one? im going with suspension techniques, i know they have a sway bar set for the prelude, maybe im better going with that? thanks in advance!!!

An upgraded rear sway bar will increase oversteer and coincidentally decrease understeer. Try Eibach, H&R, ST and maybe check out what some of the higher model Preludes ran for your year. For example on my Civic im using the Type R rear sway. Look up some Preludes that do track racing and see what they run.