FAST Wiring Harnesses

Wiring Harness, Fast XFI, ECU, Chevy, Small Block, LS, Kit

Part Number: FST-301108

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Estimated Ship Date: Feb 25, 2026 if ordered today

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Wiring Harness, Fast XFI, Main Harness, Universal, Kit

Part Number: FST-301105

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 25, 2026 if ordered today

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WIRING HARNESS

Part Number: FST-30314

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Estimated Ship Date: Today if shipped by air

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Wiring Harness, XFI, CAN Retrofit, Each

Part Number: FST-301412

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Feb 25, 2026 if ordered today

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Wiring Harness, Fast XFI, ECU, Chrysler, Dodge, Hemi, Kit

Part Number: FST-301104

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Estimated Ship Date: Feb 25, 2026 if ordered today

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ECU, Fast XFI, Main Harness, Chevy 1997-2004, 5.7L, Kit

Part Number: FST-301101

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Estimated Ship Date: Feb 25, 2026 if ordered today

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Ignition Module Harness, XFI, Kit

Part Number: FST-301308

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Estimated Ship Date: Feb 23, 2026 if ordered today

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CABLE ADAPTER

Part Number: FST-30319-1

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Estimated Ship Date: Feb 23, 2026 if ordered today

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RACE BILLET TO MSD CAR SIDE HARNESS

Part Number: FST-6000-6719

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Estimated Ship Date: Feb 25, 2026 if ordered today

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Wiring Harness, Fast XFI, ECU, for Rear Engine Dragster/Boat, Kit

Part Number: FST-301106

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Estimated Ship Date: Feb 23, 2026 if ordered today

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HARNESS, EZ TCU

Part Number: FST-30261CPG

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Estimated Ship Date: Feb 23, 2026 if ordered today

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HARNESS, FORD COYOTE COIL

Part Number: FST-30285

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Estimated Ship Date: Feb 23, 2026 if ordered today

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HARNESS, FOR FAST SINGLE PRESS URE

Part Number: FST-30143

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Estimated Ship Date: Feb 23, 2026 if ordered today

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wiring harness HARNESS, 5V PRESSURE TO XFI

Part Number: FST-30317-1

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Estimated Ship Date: Feb 23, 2026 if ordered today

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REPLACEMENT HARNESS

Part Number: FST-43335

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Estimated Ship Date: Feb 25, 2026 if ordered today

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Wiring Harness, Fast XFI, Main Harness, Chevy, 5.0, 5.7L, Kit

Part Number: FST-301100

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 25, 2026 if ordered today

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CONNECTOR KIT, FAST FAN AND FUEL PUMP

Part Number: FST-301406K

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Estimated Ship Date: Feb 23, 2026 if ordered today

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HARNESS, FUEL AND OIL PRESSURE

Part Number: FST-30144

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Estimated Ship Date: Feb 23, 2026 if ordered today

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Crane Ign to MSD Dist Adap

Part Number: FST-6000-6727

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Estimated Ship Date: Feb 23, 2026 if ordered today

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COIL HARNESS, FORD MOD.COIL ON PLUG

Part Number: FST-30249

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Estimated Ship Date: Feb 23, 2026 if ordered today

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WIRING HARNESS, FOR HEMI 5.7 C OIL

Part Number: FST-30120

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Estimated Ship Date: Feb 23, 2026 if ordered today

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IPU Adapter Harness, Connectors, Terminals, Seals, FAST XFI, Kit

Part Number: FST-301300

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 23, 2026 if ordered today

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CONNECTOR KIT ONLY, HALL EFFECT

Part Number: FST-301301K

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Estimated Ship Date: Feb 23, 2026 if ordered today

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CONNECTOR KIT, FAST VSS AND AUX. SHAFT

Part Number: FST-301403K

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Estimated Ship Date: Feb 23, 2026 if ordered today

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RACE BILLET DISTRIBUTOR ADAPTER HARNESS

Part Number: FST-6000-6717

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Estimated Ship Date: Feb 25, 2026 if ordered today

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