The Jass Performance Universal Seat Mounts are designed to achieve the lowest and furthest back possible mounting location for an aftermarket seat. 
The width is adjustable to fit a variety of racing seats. The main features listed in short are:

• Precision CNC laser cut and bent from 3mm carbon steel
• Lowest and rear most seating location guaranteed
• Full height and width adjustability
• 5 and 6 point sub belt mounting locations
• 10.9 strength zinc coated hardware
• FEM weight optimized design
• Unique design for MX5/Miata/Roadster tailored fit
• Easy bolt on installation to factory location
• 10.9 bolts for seat installation are included as well in the kit. 

This bracket is for ONE seat only, it will fit either the l/h OR the r/h seat runners.

Please note, the actual product comes with discrete high quality wrinkle black finish. 
We use red adapters for the pictures so they show up better. 

NM02432. JP2672.