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Rywire - Premium Motorsports Wires, Electronics, & Accessories

Founded and based in Garden Grove, California, Rywire Motorsport Electronics produces high-performance engine harnesses, brake/clutch line kits, PDM switch panels, and drive‑by‑wire components.

Known for their flagship Mil‑Spec, wire‑tucked harnesses, Rywire uses military‑grade Tefzel wiring, Raychem heat‑shrink, and OEM connectors to deliver clean, reliable, and expandable solutions tailored to engine swaps and ECU upgrades.

Their product lineup includes application‑specific harnesses for Hondas (B-, K-, S‑series), Mazdas (RX‑7), Supras, and more, plus support for EV builds and custom installations. Each harness is hand‑assembled in‑house, offering options like charge/ground kits, fuse‑relay sub‑harnesses, and coil‑on‑plug adapters.

Rywire ships dozens of harnesses weekly to builds ranging from drift and drag to show cars and track setups. With a strong DIY and pro support network—including install guides, direct customer service, and active YouTube—Rywire combines engineering precision, motorsport insight, and enthusiast accessibility in every loom.

Rywire Race Style Chassis Adapter Relay/Fuse Box

Rywire
Original Price $497.25 - Original Price $497.25
Original Price
$497.25
$497.25 - $497.25
Current Price $497.25
In stock

Rywire Race Style Chassis Adapter Relay/Fuse Box

Original Price $497.25 - Original Price $497.25
Original Price
$497.25
$497.25 - $497.25
Current Price $497.25

Rywire VTec Pressure Delete Bolt - Titanium

Rywire
Original Price $11.05 - Original Price $11.05
Original Price
$11.05
$11.05 - $11.05
Current Price $11.05
In stock

Rywire VTec Pressure Delete Bolt - Titanium

Original Price $11.05 - Original Price $11.05
Original Price
$11.05
$11.05 - $11.05
Current Price $11.05

Rywire Switch Panel (6 Toggles / Will Not Work w/PDM Systems)

Rywire
Original Price $182.33 - Original Price $182.33
Original Price
$182.33
$182.33 - $182.33
Current Price $182.33
In stock

Rywire Switch Panel (6 Toggles / Will Not Work w/PDM Systems)

Original Price $182.33 - Original Price $182.33
Original Price
$182.33
$182.33 - $182.33
Current Price $182.33

Rywire 4 Wire 02 Extension 92-00 Honda/Acura (Minimum Order Qty 10)

Rywire
Original Price $27.63 - Original Price $27.63
Original Price
$27.63
$27.63 - $27.63
Current Price $27.63
In stock

Rywire 4 Wire 02 Extension 92-00 Honda/Acura (Minimum Order Qty 10)

Original Price $27.63 - Original Price $27.63
Original Price
$27.63
$27.63 - $27.63
Current Price $27.63

Rywire Rear Speed Subharness for 2 Wire Hall Sensor

Rywire
Original Price $27.63 - Original Price $27.63
Original Price
$27.63
$27.63 - $27.63
Current Price $27.63
In stock

Rywire Rear Speed Subharness for 2 Wire Hall Sensor

Original Price $27.63 - Original Price $27.63
Original Price
$27.63
$27.63 - $27.63
Current Price $27.63

Rywire Rear Speed Sub for Infinity Harnesses Hall 3 Wire Sensor

Rywire
Original Price $27.63 - Original Price $27.63
Original Price
$27.63
$27.63 - $27.63
Current Price $27.63
In stock

Rywire Rear Speed Sub for Infinity Harnesses Hall 3 Wire Sensor

Original Price $27.63 - Original Price $27.63
Original Price
$27.63
$27.63 - $27.63
Current Price $27.63

Rywire Radiator Fan (8in)

Rywire
Original Price $55.25 - Original Price $55.25
Original Price
$55.25
$55.25 - $55.25
Current Price $55.25
In stock

Rywire Radiator Fan (8in)

Original Price $55.25 - Original Price $55.25
Original Price
$55.25
$55.25 - $55.25
Current Price $55.25

Rywire Mil-Spec Connector Plate - Small 3x3in

Rywire
Original Price $44.20 - Original Price $44.20
Original Price
$44.20
$44.20 - $44.20
Current Price $44.20
In stock

Rywire Mil-Spec Connector Plate - Small 3x3in

Original Price $44.20 - Original Price $44.20
Original Price
$44.20
$44.20 - $44.20
Current Price $44.20

Rywire Mil-Spec Connector Plate - Large 3x5in

Rywire
Original Price $44.20 - Original Price $44.20
Original Price
$44.20
$44.20 - $44.20
Current Price $44.20
In stock

Rywire Mil-Spec Connector Plate - Large 3x5in

Original Price $44.20 - Original Price $44.20
Original Price
$44.20
$44.20 - $44.20
Current Price $44.20

Rywire Honda K24Z3 Tucked Budget Engine Harness w/OBD2 02-04 K24Z3 Sensors & Connectors/Front VSS

Rywire
Original Price $911.63 - Original Price $911.63
Original Price
$911.63
$911.63 - $911.63
Current Price $911.63
In stock

Rywire Honda K24Z3 Tucked Budget Engine Harness w/OBD2 02-04 K24Z3 Sensors & Connectors/Front VSS

Original Price $911.63 - Original Price $911.63
Original Price
$911.63
$911.63 - $911.63
Current Price $911.63

Rywire Honda K24 Tucked Eng Harn w/02-04 K24 Crank/Knock Sensor (Rear VSS Position)

Rywire
Original Price $744.77 - Original Price $744.77
Original Price
$744.77
$744.77 - $744.77
Current Price $744.77
In stock

Rywire Honda K24 Tucked Eng Harn w/02-04 K24 Crank/Knock Sensor (Rear VSS Position)

Original Price $744.77 - Original Price $744.77
Original Price
$744.77
$744.77 - $744.77
Current Price $744.77

Rywire 02-04 K-Series RWD Mil-Spec Eng Harn w/02-04 Wiring/K-Pro/S2K Tran/K-Ser TB/Int (Adapter Req)

Rywire
Original Price $993.40 - Original Price $993.40
Original Price
$993.40
$993.40 - $993.40
Current Price $993.40
In stock

Rywire 02-04 K-Series RWD Mil-Spec Eng Harn w/02-04 Wiring/K-Pro/S2K Tran/K-Ser TB/Int (Adapter Req)

Original Price $993.40 - Original Price $993.40
Original Price
$993.40
$993.40 - $993.40
Current Price $993.40

Rywire 02-04 Honda K-Series Mil-Spec Engine Harness w/Chassis Specific Adapter

Rywire
Original Price $1,434.29 - Original Price $1,434.29
Original Price
$1,434.29
$1,434.29 - $1,434.29
Current Price $1,434.29
In stock

Rywire 02-04 Honda K-Series Mil-Spec Engine Harness w/Chassis Specific Adapter

Original Price $1,434.29 - Original Price $1,434.29
Original Price
$1,434.29
$1,434.29 - $1,434.29
Current Price $1,434.29

Rywire 02-04 Honda K-Series Mil-Spec Engine Harness w/OBD2 02-04 RSX K20 Sensors (Adapter Req)

Rywire
Original Price $1,103.90 - Original Price $1,103.90
Original Price
$1,103.90
$1,103.90 - $1,103.90
Current Price $1,103.90
In stock

Rywire 02-04 Honda K-Series Mil-Spec Engine Harness w/OBD2 02-04 RSX K20 Sensors (Adapter Req)

Original Price $1,103.90 - Original Price $1,103.90
Original Price
$1,103.90
$1,103.90 - $1,103.90
Current Price $1,103.90

Rywire Honda K-Series (w/Haltech Elite 1500+) Engine Harness w/Chassis Specific Adapter

Rywire
Original Price $1,916.28 - Original Price $1,916.28
Original Price
$1,916.28
$1,916.28 - $1,916.28
Current Price $1,916.28
In stock

Rywire Honda K-Series (w/Haltech Elite 1500+) Engine Harness w/Chassis Specific Adapter

Original Price $1,916.28 - Original Price $1,916.28
Original Price
$1,916.28
$1,916.28 - $1,916.28
Current Price $1,916.28

Rywire Honda K-Series (w/Haltech Elite 1500+) Engine Harness w/Chassis Specific Adapter

Rywire
Original Price $1,916.28 - Original Price $1,916.28
Original Price
$1,916.28
$1,916.28 - $1,916.28
Current Price $1,916.28
In stock

Rywire Honda K-Series (w/Haltech Elite 1500+) Engine Harness w/Chassis Specific Adapter

Original Price $1,916.28 - Original Price $1,916.28
Original Price
$1,916.28
$1,916.28 - $1,916.28
Current Price $1,916.28

Rywire Honda K-Series (w/Haltech Elite 1500+) Engine Harness w/Chassis Specific Adapter

Rywire
Original Price $1,916.28 - Original Price $1,916.28
Original Price
$1,916.28
$1,916.28 - $1,916.28
Current Price $1,916.28
In stock

Rywire Honda K-Series (w/Haltech Elite 1500+) Engine Harness w/Chassis Specific Adapter

Original Price $1,916.28 - Original Price $1,916.28
Original Price
$1,916.28
$1,916.28 - $1,916.28
Current Price $1,916.28

Rywire Honda K-Series (w/Haltech Elite 1500+) Engine Harness w/Chassis Specific Adapter

Rywire
Original Price $1,916.28 - Original Price $1,916.28
Original Price
$1,916.28
$1,916.28 - $1,916.28
Current Price $1,916.28
In stock

Rywire Honda K-Series (w/Haltech Elite 1500+) Engine Harness w/Chassis Specific Adapter

Original Price $1,916.28 - Original Price $1,916.28
Original Price
$1,916.28
$1,916.28 - $1,916.28
Current Price $1,916.28

Rywire Honda K-Series (w/Haltech Elite 1500+) Engine Harness w/Chassis Specific Adapter

Rywire
Original Price $1,916.28 - Original Price $1,916.28
Original Price
$1,916.28
$1,916.28 - $1,916.28
Current Price $1,916.28
In stock

Rywire Honda K-Series (w/Haltech Elite 1500+) Engine Harness w/Chassis Specific Adapter

Original Price $1,916.28 - Original Price $1,916.28
Original Price
$1,916.28
$1,916.28 - $1,916.28
Current Price $1,916.28

Rywire Honda K-Series (w/Haltech Elite 1500+) Engine Harness w/Chassis Specific Adapter

Rywire
Original Price $1,916.28 - Original Price $1,916.28
Original Price
$1,916.28
$1,916.28 - $1,916.28
Current Price $1,916.28
In stock

Rywire Honda K-Series (w/Haltech Elite 1500+) Engine Harness w/Chassis Specific Adapter

Original Price $1,916.28 - Original Price $1,916.28
Original Price
$1,916.28
$1,916.28 - $1,916.28
Current Price $1,916.28

Rywire Honda K-Series (w/Haltech Elite 1500+) Engine Harness w/Chassis Specific Adapter

Rywire
Original Price $1,916.28 - Original Price $1,916.28
Original Price
$1,916.28
$1,916.28 - $1,916.28
Current Price $1,916.28
In stock

Rywire Honda K-Series (w/Haltech Elite 1500+) Engine Harness w/Chassis Specific Adapter

Original Price $1,916.28 - Original Price $1,916.28
Original Price
$1,916.28
$1,916.28 - $1,916.28
Current Price $1,916.28

Rywire Honda K-Series (w/Haltech Elite 1500+) Engine Harness w/Chassis Specific Adapter

Rywire
Original Price $1,916.28 - Original Price $1,916.28
Original Price
$1,916.28
$1,916.28 - $1,916.28
Current Price $1,916.28
In stock

Rywire Honda K-Series (w/Haltech Elite 1500+) Engine Harness w/Chassis Specific Adapter

Original Price $1,916.28 - Original Price $1,916.28
Original Price
$1,916.28
$1,916.28 - $1,916.28
Current Price $1,916.28

Rywire Honda K-Series (w/Haltech Elite 1500+) Eng Harn w/OBD2 Alt/EV14 Inj/AEM IAT/MAP (Adapter Req)

Rywire
Original Price $1,822.35 - Original Price $1,822.35
Original Price
$1,822.35
$1,822.35 - $1,822.35
Current Price $1,822.35
In stock

Rywire Honda K-Series (w/Haltech Elite 1500+) Eng Harn w/OBD2 Alt/EV14 Inj/AEM IAT/MAP (Adapter Req)

Original Price $1,822.35 - Original Price $1,822.35
Original Price
$1,822.35
$1,822.35 - $1,822.35
Current Price $1,822.35

Rywire Honda K-Series (w/FuelTech 550 ECU) Engine Harness w/Chassis Specific Adapter

Rywire
Original Price $1,916.28 - Original Price $1,916.28
Original Price
$1,916.28
$1,916.28 - $1,916.28
Current Price $1,916.28
In stock

Rywire Honda K-Series (w/FuelTech 550 ECU) Engine Harness w/Chassis Specific Adapter

Original Price $1,916.28 - Original Price $1,916.28
Original Price
$1,916.28
$1,916.28 - $1,916.28
Current Price $1,916.28

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