Holley HP EFI ECU and Harness Kits 550-602N studfix The LS Race single-plane intake

The LS Race single-plane intake manifold is designed for hi-performance/racing engine applications

Application 70 Chevy Chevelle Malibu SS Pontiac Lemans GTO Hardtop w/ Drum Brakes ONLY 71-72 Chevelle Malibu SS Lemans GTO Hardtop

multi-gauge touchscreen display on the market

1x Transmission Cooling Line C

OEM - 15292085

Holley HP EFI ECU and Harness Kits 550-602N studfix The LS Race single-plane intakeHP ECU AND HARNESS, LS1 6, NTK Looking for a plug and play kit for your GM LS engine? The HP ECU allows you to accurately control the fuel and ignition of your engine plus much more! Got a stock LS engine? Simply download a base map and you're on your way. Got a turbocharged, nitrous fed LS engine on water meth? This HP EFI kit can control that too! Stop reflashing your factory ECU every time you make a performance modification. Get Holley EFI today!