

Planted Seat Bracket - Mazda MX-5 Miata (NA, 1989-1997) - Driver/Left
The Planted driver-side seat bracket bolts an aftermarket seat to the factory floor points in the 1989-1997 Mazda MX-5 Miata. It is laser-cut 3/16" steel, hand-welded in the USA and pre-slotted for most major slider patterns. It's a solid foundation for autocross, track-day and street builds.
| Part Number: | SB101 LEFT |
| Manufacturer: | SB101DR |
- Fits 1989-1997 Mazda MX-5 Miata (NA), driver/left side
- Laser-cut 3/16" steel, hand-welded in the USA, black powder coat
- Pre-slotted for most major slider patterns, with room for custom drilling
- Standard bolt pattern: includes the Recaro slider pattern. Cobra Wide and Scheel-Mann sliders need one hole per slider elongated 1/8"
- Bolts to factory mounting points, no floor modification
- Fits all 1989-1997 NA Mazda Miatas
- Sold individually. The passenger side is SB101PA
- Not an FIA-homologated seat mount. Confirm acceptance with your sanctioning body before competition use
Disclaimers:
- Seats come in many different shapes and sizes, so not all seats will fit in all vehicles. It is up to the end user to determine if the seat will fit before ordering the seat bracket and other components.
- Many vehicles have the steering wheel offset toward the center of the vehicle. This can be accentuated when installing an aftermarket seat of a different size than the factory seat.
- Replacing a factory seat with an aftermarket seat may cause the vehicle's warning indicators to activate. This can be due to airbag, weight and/or other sensors in the factory seat that are not included in an aftermarket seat. It may be possible to eliminate these indicators with an electronic resistor, but it is up to the end user to determine if a resistor will work and which resistor to use.
- Professional installation is recommended.
A 1989-1997 Mazda MX-5 Miata is built to be driven hard, and the factory seat is usually the first thing that stops keeping up. Once the tires, brakes and suspension are sorted, you start sliding around in the stock seat mid-corner. A proper bucket fixes that, and it needs a solid base underneath it.
Planted develops every bracket with the vehicle in its shop, using the actual floor as the reference rather than a drawing. The bracket is laser-cut from 3/16" steel, hand-welded in the USA for full weld penetration and finished in black powder coat. Each one goes through three stages of quality control before it ships.
Pre-slotted hole patterns cover most major slider brands, including Recaro, Sparco, OMP, Cobra, Corbeau, Momo and NRG. This Standard bolt-pattern version includes the Recaro pattern. Wide Cobra and Scheel-Mann sliders need one hole on each slider elongated by 1/8". If you'd rather delete the sliders to lower the seat, there's room to drill for a direct mount or side mounts.
This is the driver/left bracket, sold individually. The passenger side is SB101PA. Confirm your seat's dimensions against the cabin before ordering. Removing the factory seat can trigger airbag or occupancy warning lights, which may need a resistor. Professional installation is recommended.
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