Adding a rear sway bar to ED civic

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wouldnt it be a bit wacky though? Id be moving from 18mm front no rear to 18mm front 24mm rear (if i went ASR rear swaybar aswell)

In my opinion, the stock handling of virtually every front wheel drive is wacky and also dangerous. The reduciton of relentless understeer is what I call sanity. Put your swaybar on and prepare for your steering wheel to actually do something for once!