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Gen III LS 4.8/5.3 ECU/Wiring

Wiring Harnesses

Wiring Harnesses

Engine Control Units (ECU Only)

Engine Control Units (ECU Only)

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FAST
FAST Air/Fuel Meter w/Dual Oxygen Sensors

$586.95

In stock
Holley
Holley Terminator TERMINATOR X MAX MPFI W/TRANS & DBW, LS1

$2,099.95

In stock
Holley
Holley HP EFI ECU & Harness Kit, GM LS2/3/7 (58x Crank Sensor) with Jetronic/Minitimer (Bosch Type) Connectors, NTK Oxygen Sensor

$2,969.95

In stock
Holley
Holley HP EFI ECU & Harness Kit, GM LS2/3/7 (58x Crank Sensor) with Jetronic/Minitimer (Bosch Type) Connectors, Bosch Oxygen Sensor

$2,719.95

In stock
Holley
Holley TERMINATOR X MAX MPFI W/TRANS & DBW, LS1

$2,049.95

In stock
Holley
Holley Terminator X Max Early Truck 24x/1x LS MPFI Kit with DBW Throttle Body Control

$1,899.95

In stock
Holley
Holley HP EFI ECU & Harness Kit, GM LS2/3/7 (58x Crank Sensor) With USCAR (EV6 Style) Connectors on Injector Harness, Includes NTK Oxygen Sensor

$3,099.95

In stock
Holley
Holley EFI Stand Alone Digital Dash Kit

$1,749.95

In stock
Holley
Holley HP EFI ECU & Harness Kit, GM LS1/LS6 (24x crank sensor), Includes Bosch O2 Sensor

$2,849.95

In stock
Holley
Holley HP EFI ECU & Harness Kit, GM LS2/3/7 (58x Crank Sensor) With USCAR (EV6 Style) Connectors on Injector Harness, Bosch Oxygen Sensor

$2,849.95

In stock
Holley
Holley TERMINATOR X MAX MPFI W/DBW, LS1 W/ EV6

$1,849.95

In stock
FTI Performance
Fuel Tech LS550 SINGLE TURBO Complete Kit

$3,745.00

In stock
FTI Performance
Fuel Tech LS550 V8 Complete Harness

$999.00

In stock
Dirty Dingo
Dirty Dingo LS - Vortec Billet 411 PCM Mounting Plate

$43.99

In stock
Dirty Dingo
Dirty Dingo LS E38 E67 Gen IV PCM Billet Mounting Plate 58X

$36.99

In stock
Painless Performance Products
1999-2006 GM Gen III 4.8, 5.3 & 6.0L Harness Std. Length

$599.99

In stock