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Engine Wiring Harnesses

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Wire Harness LS to SS Map Adapter

HOLLEY 558-467 Wire Harness LS to SS Map Adapter

Wire Harness LS to SS Map Adapter

From $32.13

7-Pin Main Harness - Sniper TBI

HOLLEY 558-490 7-Pin Main Harness - Sniper TBI

7-Pin Main Harness - Sniper TBI

From $154.47

10-Pin Harness - Sniper TBI

HOLLEY 558-491 10-Pin Harness - Sniper TBI

10-Pin Harness - Sniper TBI

From $60.61

Sniper 2 I/O Harness

HOLLEY 558-497 Sniper 2 I/O Harness

Sniper 2 I/O Harness

From $43.99

Sale

TPI Stealth Ram Main Harness

HOLLEY HLY558-101 TPI Stealth Ram Main Harness

TPI Stealth Ram Main Harness

$649.95 $609.37

Sale

Bench-Top EFI Test Harness

HOLLEY HLY558-127 Bench-Top EFI Test Harness

Bench-Top EFI Test Harness

$236.95 $225.20