// 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
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Mazda RX-7 Brakes
The lightweight RX-7 is all about balance and braking feel. Shop performance...
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Mazda RX-7 Cooling
Rotaries live and die by heat management — and the 13B-REW is...
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Mazda RX-7 Drivetrain
Get rotary power to the ground reliably. Shop clutches, differentials, axles, and...
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Mazda RX-7 Electronics
The 13B-REW responds beautifully to proper engine management. Shop standalone ECUs, gauges,...
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Mazda RX-7 Engine Parts
Build your 13B-REW right — and shop the only authorized US source...
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Mazda RX-7 Exterior
The FD RX-7's curves are some of the most beautiful ever drawn....
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Mazda RX-7 Fuel
Rotaries are thirsty, and a high-output 13B-REW needs serious fueling. Shop high-flow...
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Mazda RX-7 Intake & Exhaust
Let the 13B-REW breathe and sing. Shop intakes, exhaust manifolds, downpipes, and...
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Mazda RX-7 Interior
Restore or upgrade the RX-7's driver-focused cabin. Shop gauges, gauge pods, shift...
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Mazda RX-7 Suspension & Steering
The RX-7's near-perfect balance deserves dialed suspension. Shop coilovers, sway bars, control...
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Mazda RX-7 Forced Induction
Boosted rotary power is a thing of beauty — and this is...
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Mazda RX-7 Ignition
Strong spark is everything on a rotary. Shop ignition coils, leading and...
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M14 x 1.5 RIFE Standard IAT Air Temperature Sensor GM Delphi Connector -10 to 335°F (52-1248)
Regular price $69.00Regular priceSale price $69.00 -
RIFE Sensors Shop Banner 3'x6'
Regular price $39.99Regular priceSale price $39.99 -
RIFE Triple Sensor Block + 1 M5 Input (Choose Sensors)
Regular price $469.00Regular priceSale price $469.00 -
RIFE Double Sensor Block + 2 M5 Inputs (Choose Sensors)
Regular price $349.00Regular priceSale price $349.00 -
RIFE 4 Sensor Boost Ready Remote Sensor Block
Regular price From $529.00Regular price$559.00Sale price From $529.00Sale -
RIFE Quad Sensor Block (Choose Sensors)
Regular price $569.00Regular priceSale price $569.00 -
Haltech IO16 Input/Output Expander - 16 Channel (Box Only)
Regular price $399.99Regular priceSale price $399.99Sold out -
Haltech NEXUS Ti6L Transmission Interface Kit
Regular price $450.99Regular priceSale price $450.99 -
RIFE 150 PSI DTM Series Pressure Sensor Transducer 1/8" NPT
Regular price $139.99Regular priceSale price $139.99 -
DeatschWerks 86-91 Mazda RX-7 FC Turbo II Fuel Rails
Regular price $229.99Regular priceSale price $229.99 -
Clutch Masters 86-92 Mazda RX-7 1.3L Turbo 850 Street Twin Disc Clutch Kit
Regular price $1,472.99Regular price$1,732.50Sale price $1,472.99Sale -
Radium Engineering 1/8in NPT Male to Female 90 Degree Fitting
Regular price $14.99Regular priceSale price $14.99 -
Radium Engineering 1/8in NPT Plug
Regular price $4.99Regular priceSale price $4.99 -
Radium Engineering 6AN ORB to 6AN ORB Swivel Union
Regular price $18.99Regular price$19.95Sale price $18.99Sale -
Radium Engineering 6AN ORB to 1/8NPT Female Fitting
Regular price $14.99Regular priceSale price $14.99 -
Radium Engineering 1/8in NPT Male to 3/16in Barb 90 Degree Fitting
Regular price $14.99Regular priceSale price $14.99Sold out -
Radium Engineering 3/8in SAE Male to 1/8in NPT Male Fitting
Regular price $14.99Regular priceSale price $14.99 -
Radium Engineering Fuel Level Switch, 1/8 NPT
Regular price $85.99Regular price$89.95Sale price $85.99Sale -
Radium Engineering 10AN ORB to Bosch 044 Check Valve Adapter
Regular price $37.99Regular price$39.95Sale price $37.99Sale -
Radium Engineering FPD-R Direct Mount 3/8 NPT Fuel Pulse Damper Kit
Regular price $85.99Regular price$89.95Sale price $85.99Sale -
Radium Engineering FPD-XR Direct Mount 3/8 NPT Fuel Pulse Damper Kit
Regular price $94.99Regular price$99.95Sale price $94.99Sale -
Radium Engineering 10AN Male Swivel Banjo - 11.8MM Press Fit Fitting
Regular price $56.99Regular price$59.95Sale price $56.99Sale -
Radium Engineering Universal Check Valve
Regular price $47.99Regular price$49.95Sale price $47.99Sale -
Radium Engineering Bosch Pumps 4 Port Manifold Reuses Check Valves - Universal
Regular price $142.99Regular price$149.95Sale price $142.99Sale
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?


















