The Buddy Club Shift Knob Type A was designed by Mr. Jun San Chen himself. It is what he uses to win races in his race cars with floor mounted shifters such as the Altezza, Chaser, and DC5.
M8x1.25 - MR-S
M10x1.25 - NISSAN, MAZDA, MITSUBISHI
M10x1.5 - HONDA
M12x1.25 - TOYOTA, LEXUS, SUBARU