I'm not sure if there's a thicker Acura or other Honda model sway bar, that can be swapped onto our Accords.
anything for the 2nd generation acura CL or TL would be a direct swap, and 3rd gen TL rear sway bars can be fitted to the 6g accords. if you have a i4 sedan, you may have to bend one exhaust hanger a little bit as it would make slight contact with the rear sway. not sure if that's true for every 3rd gen TL rear sway bar, but for the larger Progress rear sway bar, i had to bend the hanger slightly.
a lot of people just upgraded the rear sway and that made the handling pretty good, that's all i did on my last accord and it was a great improvement over the stock bar.