Home » Holley EFI - HP EFI ECU & Harness Kits
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SKU: GVMR_550-602N UPC: 00090127687451
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Holley EFI - HP EFI ECU & Harness Kits

Holley EFI
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$3,137.13 $3,262.95

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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 re-flashing your factory ECU every time you make a performance modification. Get Holley EFI today!