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Ships within 48 hours · Estimated delivery Sep 9 - Sep 14
This header collector kit takes the place of three bolt flange type connections and allows for a leak free and gasket free ball flange type connection
Rear / Upper
Screws Included
20 Power Outlets
1975-1979 GMC Jimmy
Holley EFI HP EFI Kit for GM LS1/LS6 Engines (BOSCH 02 Sensor) Upper A-Arm This header collector kit takesHP EFI Kit for GM LS1 LS6 Engines (BOSCH 02 Sensor) 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.
