These swaps will bolt right into your 90-93 SM. This will replace the fragile Mazda Comp differential and give you years of worry free racing. The swap comes with all the parts necessary to install into your car. It comes with the 4:30 torsen differential, the aluminum housing, both CV axles and the drive shaft. the swap come with a 6 month warranty.

Vehicle Applications:

• 1990-1993 Mazda Miata 1.6L NA6 (Upgrade)
• 1990-2005 Mazda Miata 1.8L NA8, NB1, & NB2 (Direct Fit)