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R Theory Motorsports
Carbon Fiber GT250 Wing Kit for Miata MX-5 NA & NB/NBFL (1990-2005)
Upgrade your NA/NB Mazda Miata with the MX-5 NA wing kit. Achieve superior downforce and stability while racing with style!
€1,769.00Mazda Miata NA/NB Frame Rail Braces – Reinforce & Protect Your Chassis
Enhance your Miata NA or NB with our Mazda Miata Frame Rail Braces, engineered for durability and improved performance. Secure your set now!
Price range: €237.00 through €641.00- Price range: €168.00 through €437.00
Miata Chassis Mounted Front Splitter Kit – Ultimate Front Downforce Solution
Transform your Miata’s performance with the Miata Chassis Mounted Front Splitter Kit! No drilling needed, just bolt it on and go!
€424.00NA/NB MX-5 Miata Flat Underbody Kit (1990-2005) – Complete Aerodynamic Upgrade
Upgrade your Miata’s aerodynamics with the Flat Underbody Kit for NA/NB (1990-2005). Reduce drag, boost acceleration, and improve overall handling for better performance.
€420.00V2 Mazda Miata NA/NB Rear Diffuser – Enhanced Performance & Style
Upgrade your Mazda Miata NA or NB with the V2 rear diffuser! Wider design, better airflow, and improved downforce.
€411.00Miata Carbon Fiber Mirror Kit (Set of 2) for NA & NB/NBFL MX-5
Enhance your Miata with the Carbon Fiber Mirror Kit by R Theory Motorsports. Lightweight, strong, and designed to fit NA/NB/NBFL Miata doors perfectly.
Price range: €98.00 through €386.00V3 Rear Diffuser Kit for Miata MX-5 NA & NB/NBFL (1990-2005)
Achieve a more aggressive stance with the Miata diffuser, crafted for peak performance! Enjoy improved airflow in your Mazda MX-5. Shop here!
Price range: €329.00 through €354.00Frame Rail Brace Backing Plate Kit for Mazda Miata NA/NB (1990-2005)
Transform your ride using our Mazda Miata Frame Rail Backing Plate! These plates improve support and aesthetics for a cleaner look. Order now!
Price range: €152.00 through €342.00V1 Rear Diffuser Kit for Miata MX-5 NA & NB/NBFL (1990-2005)
Elevate your Miata performance using the Miata Rear Diffuser Kit. Adjust the length and angle for style and improved aerodynamics!
Price range: €299.00 through €326.00Bottom Mount Seat Brackets for Mazda MX-5 Miata NA & NB
Upgrade to professional-grade seating in your Miata with our top-notch Miata Bottom Mount Seat Brackets. Order now and enjoy fast shipping!
€226.00Mazda Miata Lightweight Billet Aluminum Pulleys for water pump and alternator
Elevate your engine’s performance with the Mazda Miata water pump pulley. Enjoy a sleek look and lightweight design for maximum efficiency!
Price range: €166.00 through €183.00Miata Side Mount Seat Brackets – Perfect Fit for NA & NB Models
Upgrade your Miata with Seat Brackets for NA and NB models. Durable, easy to install, and compatible with factory sliders. Free USA & Canada shipping!
€156.00High-Performance Fuel Rail for Mazda Miata NA – 1.6 BP Engine
Optimize your Miata’s fuel delivery with our Miata Mazda Fuel Rail. Built for durability and efficiency, it is a must-have for enthusiasts.
€148.00Mazda MX-5 Miata Bottom Mount Seat Brackets – Perfect Fit for NA & NB Miatas
Elevate your Miata’s interior with durable Bottom Mount Seat Brackets! Designed for superior strength and universal compatibility. Order now!
€128.00
Since 2014, R Theory Motorsports has been working behind the scenes to design some of the latest and greatest aftermarket race parts. R Theory combines the best minds of the Engineering and Manufacturing industries to bring you quality parts that will stand up to the most demanding situations. “Engineered to Perform.” It’s not just a slogan, it’s their guarantee.
R Theory Motorsports started off making designing quality parts for the NA/NB Miata platform, but have now branched off to cater to many other platforms. Before releasing a prototype, careful measurement and consideration to material choices are made. Even more care and attention to detail is made before beginning production of any part they produce.