SERIOUS gearbox for URGENT sale

If you have the FASTEST FD anywhere on any track this will make it faster.

Instant gear changes
No time for turbo to spool down
Stay on boost
Indestructable - rated conservatively at 660 torque!
Imagine 10 to 15 or more gear changes a lap and you get the picture.

I want it to go in a really fast FD Rotary so I am posting the links here

https://www.rx7club.com/3rd-generation-rx-7-1993-2002-parts-99/fs-6-speed-sequential-holinger-dogbox-australia-882125/

Thank you