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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.
V1 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 €326.00V2 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.
€411.00- Price range: €96.00 through €106.00
NA/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.
€38.99Miata 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.
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.
Price range: €98.00 through €386.00X-Street Classic Coilovers for NB 1.6 and 1.8/1.9 (Set of 4)
Upgrade your Miata NB with V-MAXX Miata NB Street Coilovers for perfect ride height, improved handling, and everyday comfort. TÜV approved, easy adjustment, and a 2-year warranty.
35 > 65
35 > 65
Price range: €429.00 through €557.00X-Sport / XXTREME Coilovers for NB 1.6 and 1.8/1.9 (Set of 4)
Enhance your Miata NB’s handling with V-MAXX X-Sport Coilovers. Featuring 20+ click damping adjustments and TüV approval, these coilovers deliver the perfect balance of comfort and performance.
35 > 65
35 > 65
Price range: €576.00 through €704.00X-Street Classic Coilovers for NA 1.6 and 1.8 (Set of 4)
Upgrade your Mazda Miata NA with V-MAXX X-Street Classic Coilovers. Enjoy sporty handling and ride comfort with easy height adjustments. TüV approved, 2-year warranty.
35 > 65
35 > 65
Price range: €429.00 through €557.00X-Sport XXTREME Coilovers for NA 1.6 and 1.8 (Set of 4)
Upgrade your Mazda Miata NA with X-Sport XXTREME Coilovers. Enjoy sporty handling and ride comfort with easy height adjustments. TüV approved, 2-year warranty.
35 > 65
35 > 65
Price range: €576.00 through €704.00X-Street Coilovers for NC 1.8/2.0/Roadster/Coupe (Set of 4)
Upgrade your Miata NC with our X-Street Coilovers. Enjoy adjustable ride height and award-winning performance. Perfect for daily and sporty drives. 2-year warranty included.
35 > 65
35 > 65
Price range: €479.00 through €607.00
