Honda selected a stiffer front stabilizer bar (anti-sway bar) for the front of the Japanese market NSX-R. This bar allows sharper turn-in and decreased chassis roll.
factory stabilizer bar sizing reference table:
Model
|
Front |
Rear |
1991-2004 NSX (coupe & NSX-T) |
18.3 x ? |
17.5 x 2.3 |
2002+ NSX-R |
22.2 x 4.0 |
17.5 x 2.3 |