Karcepts KSM03 - Manual (Page 3)

1. MODIFYING THE RSX STYLE SHIFTER BOX
Remove the material from the plastic base of the RSX style shifter box as shown
below (hatched areas). This is the minimum amount of material necessary to cut;
otherwise, there may be interference issues with the shifter and the insides of the
chassis tunnel. Be careful not to cut any extra material near the return spring or
loss of the neutral return feature may result.