R Theory Motorsports

Shop by Category

Shop by Brand

4 Reasons to Choose Us

Built by Car Enthusiasts, for Car Enthusiasts

We care about your project car! If it’s not something we wouldn’t put on our own car, we won’t sell it.

International Shipping

No matter where in the world you are, we have shipping options to your door.

Wide Range of Products

R Theory offers almost any part that you would need for your build. Throttle bodies, coilovers, exhaust systems, and more! Check out our line up of R Theory Designed parts as well!

Customer Support

We are here to help before and after your purchase. With decades of combined experience, we will help to ensure everything goes smoothly.

Quick view Details

R Theory Motorsports

sku: RS-10011

NA/NB MX-5 Miata Adjustable Swaybar Endlinks - One Pair

$77.00

Choose Options

Quick view Details

R Theory Motorsports

sku: SQ0692910

License Plate Quick Release Bracket - PQR (Universal)

$83.99

Choose Options

SALE

Quick view Details

R Theory Motorsports

sku: SQ9172193

NA/NB MX-5 Miata Billet Aluminum Alternator and Water Pump Pulley Set of 2 Pullies

Was: $167.99

Now: $159.59

Choose Options

Quick view Details

R Theory Motorsports

sku: RE-1005(2/3)

License Plate Quick Release (PQR) Additional Pieces

$50.39

Choose Options

Quick view Details

R Theory Motorsports

sku: SQ0016427

NA/NB MX-5 Miata Low Profile Mixing Manifold/Water Pump Inlet

$125.99

Choose Options

Quick view Details

R Theory Motorsports

sku: RS-200x1

NA/NB MX-5 Miata Frame Rail Braces (1990-2005)

$239.00

Choose Options

Quick view Details

R Theory Motorsports

sku: RV-XPOWST

Powder Coat My Vents!

$39.99

Choose Options

Quick view Details

R Theory Motorsports

sku: SQ0293460

NA/NB MX-5 Miata Carbon Fiber Mirror Kit (1990-2005)

$90.99

Choose Options

Find out about our company, our products and services, and contact information.

Learn More →

Want to purchase our products? Or just want to see what we offer? Visit our online store!

View Products→

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

Apply Here →

We ship anywhere in the world! Visit this link for an International Shipping Quote.

Quote Me →

Quick view Details

R Theory Motorsports

sku: RE-10131-xx

Billet Throttle Cable Bracket For Miata Skunk2 Manifold

$82.99

Choose Options

Quick view Details

Exedy

sku: EXE15806

Exedy 2013-2016 Scion FR-S H4 Stage 1 Organic Clutch - 15806

MSRP: $765.24

$659.45

Add to Cart

Quick view Details

Pedders

sku: PEDPED-BK008

Pedders 2015+ Ford Mustang GT S550 Rear Brake Kit - PED-BK008

MSRP: $284.95

$265.46

View Details

Quick view Details

Pedders

sku: PEDPED-909148R

Pedders EziFit SportsRyder Front Right Spring And Shock (Twin Tube 25mm) 2013+ Subaru BRZ - PED-909148R

MSRP: $249.95

$233.96

Add to Cart

Quick view Details

Pedders

sku: PEDPED-909148L

Pedders EziFit SportsRyder Front Left Spring And Shock (Twin Tube 25mm) 2013+ Subaru BRZ - PED-909148L

MSRP: $249.95

$233.96

Add to Cart

Quick view Details

Pedders

sku: PEDPED-814100

Pedders 2013+ Subaru BRZ / Scion FR-S Front and Rear Sway Bar Kit - PED-814100

MSRP: $423.90

$390.52

View Details

Quick view Details

Pedders

sku: PEDPED-804013

Pedders 97-02 Subaru Forester SF SportsRyder Low Springs - PED-804013

MSRP: $329.95

$305.96

Add to Cart

Quick view Details

Pedders

sku: PEDPED-803050

Pedders EziFit SportsRyder Spring + Shock Kit (Offset Mount) 2012+ Subaru/Toyota/Scion BRZ/FRS/FT86 - PED-803050

MSRP: $879.95

$800.96

View Details

Shop by Category

Shop by Brand

Parts designed to help you win.

DEALER APPLICATION

Shop All NA Miata Parts

Shop all NB Miata Parts

Current Top Sellers

New Products