RGR NB Miata "Sport" Chassis Mounted Front Splitter Kit

RGR Sport Splitter (NBA-FMS / NBA-SMS)

The RGR Sport Splitter bridges the gap between purely cosmetic splitters and full track-oriented aero. It provides real aerodynamic performance while remaining completely bolt-on, requiring no drilling, cutting, or permanent modification when installed with the Standard (NBA-SMS) mounts.

Designed for easy installation and removal, the Sport Splitter leaves no marks on your car and offers a lightweight, 4-way adjustable design. Smaller than our Ultra Splitter, it’s more practical for everyday use while maintaining high performance and a clean, functional look.

Mounting Options
Forward Mount (NBA-FMS): Mounts further forward; ideal when space allows.

Standard Mount (NBA-SMS): Mounts further back, includes additional reinforcements, and may require splitter rods depending on vehicle setup.

Different cars have different space constraints—such as oil coolers or intercooler piping—so mount choice should be based on your configuration.

The Splitter blade is also optional in case you wish to make your splitter from another material. We can cut you a template in carboard or you can go the DIY route (reach out for more info).

Aerodynamic Benefits
All RGR splitters are designed to stabilize and smooth airflow beneath the front of the car, resulting in:
-Reduced drag
-Improved high-speed stability
-Noticeable downforce gains

Kit Includes:
-All necessary hardware
-Splitter brackets
-Reinforcements
-Splitter ramps
-Chassis mounts
-Rounded Edge Trim

Options
-Forward or Standard chassis mount
-Splitter blade (made from 3/8" HPDE Plastic)

Additional Information
-Designed, Engineered, and Manufactured in the USA

Recommended pairing
-RGR NB Spats
-Bumper/Splitter Seal (For cars without lips, required on MSMs)
-Splitter Rods (if you choose to use the Standard Mounts)

Notes
-For Instructions please follow/copy this link
https://drive.google.com/drive/folders/134Zfi_l4gDuZpzDh08g-jp5r6fBAxrBW?usp=sharing

-Here is a very informative video made by our friends at Flyin' Miata talking about our Splitters and Spats: https://www.youtube.com/watch?v=z_c3ELaKcDM&t=21s

-For the Splitter Seal, follow this link:
https://www.rgr.engineering/product/bumper-seal

-For the Splitter Rods: follow this link:
https://www.rgr.engineering/product/rgr-fspe-splitter-rods

-For international shipping or custom materials, please email us for a quote.

Disclaimer:
-For off-road use only.