While we have done OS Giken custom orders for fellow autocrossers and racers that run non-GM products, these items have never been publically available on the website. That changes today with the following popular differentials available at Borg Motorsports at any time. Availablity is still subject to OS Giken inventory levels and their manufacturing schedule.
As always, if you don't see the OS Giken item you need on our site, please contact us and we'll be happy to get what you need on order.
Also, our Black Friday sale of 15% off sitewide applies to the above OS Giken items and is going on through at least Dec. 12.