// 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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Haltech NEXUS S2 (ECU Only)
Regular price $1,830.99Regular priceSale price $1,830.99 -
Haltech Elite 2500 T ECU
Regular price $3,475.99Regular price$3,429.00Sale price $3,475.99 -
Haltech Elite 2500 ECU
Regular price $1,995.99Regular priceSale price $1,995.99 -
Haltech Elite 2500 ECU & Plug and Pin Set
Regular price $2,087.99Regular price$2,044.00Sale price $2,087.99Sold out -
Haltech NEXUS R3 Plug & Pin Set
Regular price $2,732.99Regular priceSale price $2,732.99 -
Haltech NEXUS R3 120A SurLok Connector - Red
Regular price $39.99Regular priceSale price $39.99 -
Haltech NEXUS R3 VCU
Regular price $2,585.99Regular priceSale price $2,585.99 -
Haltech NEXUS R3 120A SurLok Connector - Black
Regular price $39.99Regular price$36.00Sale price $39.99 -
Sold out -
Haltech NEXUS R5 Plug & Pin Set
Regular price $4,630.99Regular price$4,498.00Sale price $4,630.99 -
Haltech NEXUS R5 1.25in Tube Mount Kit
Regular price $155.99Regular price$145.00Sale price $155.99 -
Haltech NEXUS R5 DBW Terminated Harness - DBW Ready/Injector Connector EV6 FOR LS SWAPS
Regular price $1,550.99Regular price$1,435.00Sale price $1,550.99 -
Haltech NEXUS R5 1.625in Tube Mount Kit
Regular price $155.99Regular price$145.00Sale price $155.99 -
Haltech NEXUS R5 Non DBW Terminated Harness - Injector Connector EV1 FOR LS SWAPS
Regular price $1,550.99Regular price$1,435.00Sale price $1,550.99 -
Haltech Elite 2500/2500 T 8ft Premium Universal Wire-In Harness
Regular price $520.99Regular priceSale price $520.99 -
Haltech Elite 2500 8ft Basic Universal Wire-In Harness (No Relays or Fuses)
Regular price $365.99Regular priceSale price $365.99 -
Haltech Elite 750 8ft Premium Universal Wire-In Harness
Regular price $399.99Regular priceSale price $399.99 -
Haltech Elite 750 Basic Universal Wire-In Harness ECU Kit
Regular price $1,514.99Regular price$1,485.00Sale price $1,514.99Sold out -
Haltech Elite 2500 Basic Universal Wire-In Harness ECU Kit
Regular price $2,360.99Regular price$2,319.00Sale price $2,360.99 -
Haltech Elite 1500 Basic Universal Wire-In Harness ECU Kit
Regular price $1,990.99Regular priceSale price $1,990.99 -
Haltech Elite 1500 Premium Universal Wire-In Harness ECU Kit
Regular price $2,080.99Regular priceSale price $2,080.99 -
Haltech NEXUS R5 Universal Wire-In Harness - 2.5M (8ft)
Regular price $620.99Regular price$575.00Sale price $620.99 -
Haltech NEXUS R5 Universal Wire-In Harness - 5M (16ft)
Regular price $755.99Regular price$700.00Sale price $755.99 -
Haltech Elite 2500 Premium Universal Wire-In Harness ECU Kit
Regular price $2,450.99Regular priceSale price $2,450.99
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?





