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

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

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

CCCI HOTWIRE 86/89

Part Number: CEI-102087

Not Yet Reviewed

Estimated Ship Date: Apr 6, 2026 if ordered today

• 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