// FD3S · 13B-REW · RX-7 SPIRIT R
Mazda
RX-7 FD
Forged, track-proven performance parts engineered for the FD3S RX-7 and the legendary 13B-REW rotary. Twin-turbo response, rethought down to the apex seal.
// BUILD YOUR RX-7
Shop By Category
-
Mazda RX-7 Brakes
The lightweight RX-7 is all about balance and braking feel. Shop performance...
-
Mazda RX-7 Cooling
Rotaries live and die by heat management — and the 13B-REW is...
-
Mazda RX-7 Drivetrain
Get rotary power to the ground reliably. Shop clutches, differentials, axles, and...
-
Mazda RX-7 Electronics
The 13B-REW responds beautifully to proper engine management. Shop standalone ECUs, gauges,...
-
Mazda RX-7 Engine Parts
Build your 13B-REW right — and shop the only authorized US source...
-
Mazda RX-7 Exterior
The FD RX-7's curves are some of the most beautiful ever drawn....
-
Mazda RX-7 Fuel
Rotaries are thirsty, and a high-output 13B-REW needs serious fueling. Shop high-flow...
-
Mazda RX-7 Intake & Exhaust
Let the 13B-REW breathe and sing. Shop intakes, exhaust manifolds, downpipes, and...
-
Mazda RX-7 Interior
Restore or upgrade the RX-7's driver-focused cabin. Shop gauges, gauge pods, shift...
-
Mazda RX-7 Suspension & Steering
The RX-7's near-perfect balance deserves dialed suspension. Shop coilovers, sway bars, control...
-
Mazda RX-7 Forced Induction
Boosted rotary power is a thing of beauty — and this is...
-
Mazda RX-7 Ignition
Strong spark is everything on a rotary. Shop ignition coils, leading and...
-
Radium Engineering Universal Check Valve Kit 6AN
Regular price $56.99Regular price$59.95Sale price $56.99Sale -
Radium Engineering Fuel Pulse Damper - R 8AN ORB - Swivel
Regular price $85.99Regular price$89.95Sale price $85.99Sale -
Radium Engineering Pump Outlet Adapter - Check Valve - 10mm Barb
Regular price $37.99Regular price$39.95Sale price $37.99Sale -
Radium Engineering 10AN Male Swivel Banjo 17.5mm Press Fit
Regular price $56.99Regular price$59.95Sale price $56.99Sale -
Radium Engineering Universal Check Valve Kit 10AN
Regular price $56.99Regular price$59.95Sale price $56.99Sold out -
Radium Engineering Universal Check Valve Kit 8AN
Regular price $56.99Regular price$59.95Sale price $56.99Sale -
Radium 6AN ORB Swivel Banjo To 6AN Female Fitting
Regular price $33.99Regular price$34.95Sale price $33.99Sale -
Radium 4AN ORB Swivel Banjo to 6.5mm Barb
Regular price $33.99Regular price$34.95Sale price $33.99Sale -
Radium Engineering Fuel Pulse Damper - XR 8AN ORB - Swivel
Regular price $94.99Regular price$99.95Sale price $94.99Sale -
Radium 4AN ORB Swivel Banjo to 6AN Male
Regular price $33.99Regular price$34.95Sale price $33.99Sale -
Radium Engineering 6AN Orb Swivel Banjo 8.5mm Barb to 6AN Male Bulkhead
Regular price $33.99Regular price$34.95Sale price $33.99Sale -
Radium 4AN ORB Swivel Banjo to 8.5mm Barb
Regular price $33.99Regular price$34.95Sale price $33.99Sale -
Radium 6AN ORB Swivel Banjo to 6AN Male Fitting
Regular price $33.99Regular price$34.95Sale price $33.99Sale -
Radium Engineering 6AN ORB Swivel Banjo to 6.5mm Barb Fitting
Regular price $33.99Regular price$34.95Sale price $33.99Sale -
Radium Engineering 6AN ORB Swivel Banjo to 10mm Barb
Regular price $33.99Regular price$34.95Sale price $33.99Sale -
Radium 6AN ORB Swivel Banjo to 3/8in SAE Male
Regular price $33.99Regular price$34.95Sale price $33.99Sale -
Radium Engineering 6AN ORB Swivel Banjo to 8.5MM Barb Fitting
Regular price $33.99Regular price$34.95Sale price $33.99Sale -
Radium 8AN ORB Swivel Banjo to 6AN Male Fitting
Regular price $33.99Regular price$34.95Sale price $33.99Sale -
Radium 8AN ORB Swivel Banjo to 10AN Male Fitting
Regular price $33.99Regular price$34.95Sale price $33.99Sale -
Radium Engineering 8AN ORB Swivel Banjo To 10mm Barb
Regular price $33.99Regular price$34.95Sale price $33.99Sale -
Radium Engineering 8AN ORB Swivel Banjo to 6AN Female
Regular price $33.99Regular price$34.95Sale price $33.99Sale -
Radium 8AN ORB Swivel Banjo to .313 SAE Male Fitting
Regular price $33.99Regular price$34.95Sale price $33.99Sale -
Radium Engineering 10AN ORB Swivel Banjo to 6AN Male Fitting
Regular price $33.99Regular price$34.95Sale price $33.99Sale -
Radium 10AN ORB Swivel Banjo to 10AN Male Fitting
Regular price $33.99Regular price$34.95Sale price $33.99Sale
About the Mazda RX-7 Collection
J-Spec Garage is your home for Mazda RX-7 performance parts — and the only authorized US distributor of RaceOnly rotary engine components. No other US retailer carries RaceOnly. That exclusivity, combined with one of the deepest FD and FC RX-7 catalogs in the country, makes J-Spec the go-to source for serious rotary builds.
Our Mazda RX-7 collection covers over 2,100 products for the FD3S RX-7 (1992–2002, 13B-REW twin-turbo) and the FC3S RX-7 (1986–1991, 13B-T turbocharged). You'll find everything from apex seals, e-shaft components, and rotor housings to turbochargers, fuel system upgrades, standalone engine management, suspension, brakes, cooling, and interior — for every stage of build from a daily street rebuild to a high-horsepower track setup.
Key categories include RaceOnly billet CNC rotary parts, 13B-REW rebuild components, single turbo conversion kits, sequential twin-turbo upgrades, fuel rails and injectors, standalone ECUs, coilovers, and big brake kits. Brands stocked include RaceOnly, HKS, GReddy, Injector Dynamics, Haltech, ECUMaster, Turbosmart, Garrett, Brian Crower, DBA Brakes, and Chase Bays, among many more.
The FD RX-7 is one of the most rewarding — and most demanding — platforms to build. Get it right with parts you can trust, backed by our price match guarantee and fast US shipping.
Shop 2,100+ Mazda RX-7 parts below.
Building a 13B-REW? Read the FD RX7 13B-REW Engine Parts Guide — foundation to fuel system, with RaceOnly billet upgrades called out throughout. New to the rotary platform? Start with What Is the 13B-REW?























