Engine Management System Components

Wiring Harnesses. Holley EFI, Replacement, Wideband O2 Adapter Harness, Terminator EFI Systems, Pre-Terminated, Plug-and-Play, Each

Part Number: HLY-558-463

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

Trim Pot, Engine Management System Component, Each

Part Number: AVM-30-2056

4.29 out of 5 stars ( 7 )

Estimated Ship Date: Today

DRIVESHAFT SENSOR

Part Number: FCH-DAV-001

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Engine Management System Components, 6LS Ignition Adapter Harnesses, Front Wiring Harness Extension, Chevrolet, Small Block LS, Each

Part Number: MSD-2278

Not Yet Reviewed

Estimated Ship Date: Today

Engine Management System Components, 6LS Ignition Adapter Harnesses, Front Wiring Harness Extension, Chevrolet, Small Block LS, Each

Part Number: MSD-22791

2.33 out of 5 stars ( 3 )

Estimated Ship Date: Today

Engine Management System Components, LS Camshaft and Crankshaft Extension Harnesses, Front Wiring Harness Extension, Chevrolet, Small Block LS, Each

Part Number: MSD-2279

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 30, 2026 if ordered today

Wiring Harness, FAST Power Adder, Kit

Part Number: FST-301400

Not Yet Reviewed

Estimated Ship Date: May 22, 2026 if ordered today

• Drop Ship
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Dress cover, Gen 3 ECM Billet Dress Cover

Part Number: ICB-551968LS11CV

Not Yet Reviewed

Estimated Ship Date: Apr 3, 2026 if ordered today

• Drop Ship
• Special Order

HARNESS, FAST VSS AND AUX SHAFT KIT

Part Number: FST-301403

Not Yet Reviewed

Estimated Ship Date: Apr 24, 2026 if ordered today

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CCCI HOTWIRE 86/89

Part Number: CEI-102087

Not Yet Reviewed

Estimated Ship Date: Apr 6, 2026 if ordered today

• Special Order

GN-XFI MAP ADAPTER

Part Number: CEI-108119

Not Yet Reviewed

Estimated Ship Date: Apr 6, 2026 if ordered today

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AMS Performance MKV Supra Carbon Fiber ECU Cover - Matte Carbon

Part Number: AMV-AMS380600031

Not Yet Reviewed

Estimated Ship Date: Apr 3, 2026 if ordered today

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Fuel/Oil Logging Harness XFI Kit

Part Number: CEI-109038

Not Yet Reviewed

Estimated Ship Date: Mar 27, 2026 if ordered today

• Free Shipping
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Adapter Module, XFI to GN Adapter Module, 36 in., Buick, Each

Part Number: CEI-108135

Not Yet Reviewed

Estimated Ship Date: Mar 27, 2026 if ordered today

• Free Shipping
• Special Order

Adapter DFI-GN

Part Number: CEI-108134

Not Yet Reviewed

Estimated Ship Date: Apr 2, 2026 if ordered today

• Free Shipping
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Nexus Plug-in ECU

Part Number: HTH-HT-189002

Not Yet Reviewed

Estimated Ship Date: Mar 24, 2026 if ordered today

• Free Shipping
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UPGRADE INTELLIGENT TRACT.CON

Part Number: FST-308027

Not Yet Reviewed

Estimated Ship Date: Apr 30, 2026 if ordered today

• Free Shipping
• Special Order

UPGRADE CHARGE, XFI 2.0 FIRMWA

Part Number: FST-301020

Not Yet Reviewed

Estimated Ship Date: Apr 30, 2026 if ordered today

• Special Order

UPGRADE CHARGE, XFI 2.0 WITH E

Part Number: FST-301021

Not Yet Reviewed

Estimated Ship Date: Apr 30, 2026 if ordered today

• Free Shipping
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UPGRADE CHARGE FAST 16 INJECT

Part Number: FST-308028

Not Yet Reviewed

Estimated Ship Date: Apr 24, 2026 if ordered today

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Engine Management System Components, MS3Pro LS Plug and Play Harness Alternator Lead Extension

Part Number: DIY-PH-LSALT

Not Yet Reviewed

Estimated Ship Date: Apr 6, 2026 if ordered today

• Special Order