This is our 1" shifter extension/thread conversion. We've made this to allow you to change your factory thread pitch to various threads and here are the following options/combinations:

Internal Thread:
8x1.25mm
10x1.25mm
10x1.50mm
12x1.25mm

External Thread:
10x1.25mm
10x1.50mm
12x1.25mm

Specifications:
Finish Type: Sandblasted and Anodized Black
External Thread Length: 22mm
Internal Thread Length: 28mm
Overall Height: 65mm
Reverse Lockout Cavity Width: 22mm
Reverse Lockout Cavity Depth: 16mm

This will clear the reverse lockout on 15+ WRX, all STi and FR-S/BRZ/86. This will NOT work for Ford, Hyundai/Kia and tC2 reverse lockouts.