WE SHIP WORLD WIDE!

We offer competitive rates to bring R Theory parts to every corner of the globe.

Parts Designed To Help You Win.

Performance parts for Miatas, S2000's, and other platforms!

Apply to become an R Theory dealer

Dealer Application

Do you have a retail company and interested in becoming an R Theory Dealer?

Our Products

Featured Product

Parts Designed To Help You Win

Read More

Most Popular Products

Unbeatable Customer Service

No hidden Fees

Fast Shipping Worldwide

New Products

Also Available At These Retailers

Latest News

How to Avoid Fake Subaru Parts and Accessories Online

How to Avoid Fake Subaru Parts and Accessories Online

Buying car parts online is easy these days. You can find almost anything with a few clicks. That is
Read More
What Your Mazda MX-5 Build Says About You

What Your Mazda MX-5 Build Says About You

Your Mazda MX-5 Build Identity Every choice you make in the garage reflects your personality. From s
Read More
How to Choose Coilovers for Miata Without Making Mistakes

How to Choose Coilovers for Miata Without Making Mistakes

If you don’t know much about car parts, choosing a new suspension for your Miata can be confusing. C
Read More
Which Mazda Miata Accessories Are Right for Your Build?

Which Mazda Miata Accessories Are Right for Your Build?

Choosing the right components depends entirely on whether you prioritize track performance, daily co
Read More
Custom Miata Shift Knobs: A DIY Guide

Custom Miata Shift Knobs: A DIY Guide

Why Customize Miata Shift Knobs? Changing your Miata shift knob is the fastest way to make your car
Read More
How to Fit a Tall Guy In a Small Miata (with stock seats)

How to Fit a Tall Guy In a Small Miata (with stock seats)

If you’ve ever driven a NA or NB Miata hard at a track day, autocross, or just a proper backroad, yo
Read More
We Ship Worldwide

We Ship Worldwide

We Ship Worldwide. Because This Community Isn’t Local. Car culture isn’t limited to one country. It
Read More
Miata Wide Body Kit: Is the Aggressive Stance Worth the Extra Maintenance?

Miata Wide Body Kit: Is the Aggressive Stance Worth the Extra Maintenance?

Miata Wide Body Kit: What It Is A wide body kit is a set of exterior parts that make your Miata look
Read More
Mazda MX-5 Parts: The Complete Guide to OEM vs. Aftermarket Replacement Accessories

Mazda MX-5 Parts: The Complete Guide to OEM vs. Aftermarket Replacement Accessories

Mazda MX-5 Parts: OEM vs. Aftermarket Deciding between official Mazda parts and aftermarket upgrades
Read More
Miata Performance Parts to Modernize Your Classic MX-5 for the 2020s

Miata Performance Parts to Modernize Your Classic MX-5 for the 2020s

A Guide to Mazda MX-5 Performance Upgrades Owning a Mazda MX-5 is all about the joy of the open road
Read More
!