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R Theory Motorsports
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.
Mazda 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!
€128.00Miata 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.
€148.00NA/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.
€420.00Miata MX-5 Delrin Window Bushings for NA & NB/NBFL
Upgrade your Miata NA or NB windows with durable Delrin window bushings from R Theory Motorsports. Easy to install and long-lasting. FREE USA & Canada Shipping
€38.99- Price range: €56.00 through €109.00
Miata MX-5 Delrin Differential Bushings for NA & NB/NBFL
Upgrade your Miata’s drivetrain with R Theory Motorsports Delrin Differential Bushings for NA and NB models. Enjoy a more responsive drive and less wheel hop. FREE USA & Canada Shipping
Price range: €73.00 through €118.00- Price range: €168.00 through €437.00
Miata 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. FREE USA & Canada Shipping
Price range: €98.00 through €386.00










