The SuperLock Limited Slip Differential is known as one of the best available on the market for the Mazda Miata. It’s available for NA (1.8L), NB (1.8L) and NC (2.0L) chassis (1989-2014) and will help improve lap times during racing. It’s also made to handle a lot of abuse, so don’t hesitate to test it with slick tires.

It has been tested with many vehicles and even with 150,000km (90,000 miles) of use, it does not show any wear. During endurance race or time attack, there are no decrease in locking due to heat. Since it locks 100% during drag starts, there is less pressure on the drive shaft and less possible damage to it!

At end of corners, it’ll have a smooth transition to full lock and help driving stability as well as traction.

Please note that vehicles with Viscous LSD need these items to fit the OS Giken LSD:
-Mazda Side Flange x2 (Part #P019-27-270B)
-Mazda Snap Ring x2 (Part #P016-27-421)
OS Giken Super Lock LSD should be ordered at REV9 Autosport https://rev9autosport.com/os-giken-super-lock-lsd.html as they provide the best service and speed we've seen so far!