Almost exactly the same steering Honda had Momo make for their NSX-R production cars. This universal version comes with either black spokes (red stitching) or silver spokes (black stitching).
Diameter: 12.60 in (320 mm);13.78 in (350 mm)
Rim Diameter: 0.98 x 1.26 in (25 x 32 mm)
Anatomic Grip Diameter: 1.3 x 1.38 in (33 x 35 mm)
Part Number: TUN32BK0B (320mm/black red), TUN35BK0B (350mm/black red), TUN35BK0S (350mm/silver)