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Holley EFI

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more_vert550-442 | TERMINATOR STEALTH EFI KIT W/TRANS CONTR
$4,002.00$3,600.95

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550-442 | TERMINATOR STEALTH EFI KIT W/TRANS CONTRclose

Have you been hesitant on switching to EFI because you like the traditional look of a carburetor? Do you have a GM 4L60/80E Transmission in your hotrod? There is no more need to worry! Holley has you covered with the new Terminator Stealth Throttle Body Fuel injection System. Now you can have all of the benefits of EFI yet, maintain the traditional looks of a carburetor. Holley's Terminator Ste..

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more_vert550-443 | TERMINATOR STEALTH EFI KIT W/TRANS CONTR
$4,077.00$3,668.95

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550-443 | TERMINATOR STEALTH EFI KIT W/TRANS CONTRclose

Have you been hesitant on switching to EFI because you like the traditional look of a carburetor? Do you have a GM 4L60/80E Transmission in your hotrod? There is no more need to worry! Holley has you covered with the new Terminator Stealth Throttle Body Fuel injection System. Now you can have all of the benefits of EFI yet, maintain the traditional looks of a carburetor. Holley's Terminator Ste..

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more_vert550-444 | TERMINATOR STEALTH EFI KIT - GOLD
$3,064.00$2,756.95

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550-444 | TERMINATOR STEALTH EFI KIT - GOLDclose

Have been hesitant on switching to EFI because you like the traditional look of a carburetor? There is no more need to worry! Holley has you covered with the new Terminator Stealth Throttle Body Fuel injection System. Now you can have all of the benefits of EFI and maintain the traditional looks of a carburetor. Holley's Terminator Stealth EFI systems have the same great self-tuning features of o..

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more_vert550-444K | TERMINATOR STEALTH MASTER KIT-GOLD
$3,660.00$3,293.95

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550-444K | TERMINATOR STEALTH MASTER KIT-GOLDclose

Have been hesitant on switching to EFI because you like the traditional look of a carburetor? There is no more need to worry! Holley has you covered with the new Terminator Stealth Throttle Body Fuel injection System. Now you can have all of the benefits of EFI and maintain the traditional looks of a carburetor. Holley's Terminator Stealth EFI systems have the same great self-tuning features of o..

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more_vert550-445 | TERMINATOR STEALTH EFI KIT W/TRANS GOLD
$3,958.00$3,561.95

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550-445 | TERMINATOR STEALTH EFI KIT W/TRANS GOLDclose

Have you been hesitant on switching to EFI because you like the traditional look of a carburetor? Do you have a GM 4L60/80E Transmission in your hotrod? There is no more need to worry! Holley has you covered with the new Terminator Stealth Throttle Body Fuel injection System. Now you can have all of the benefits of EFI yet, maintain the traditional looks of a carburetor. Holley's Terminator Ste..

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more_vert550-500 | HP UNIVERSAL RETROFIT KIT FOR 4150 INTAK
$3,854.00$3,467.95

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550-500 | HP UNIVERSAL RETROFIT KIT FOR 4150 INTAKclose

Do you have a Mopar, Ford or other type engine you want to install multi-port fuel injection on? No, problem, the Holley HP universal retrofit EFI kits are designed to be used with any V-8 intake manifold. The kit comes with injector bungs and un-machined fuel rails so you can modify to fit any single plane 4bbl intake manifold. The HP universal retrofit kits also come with the necessary wiring, ..

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more_vert550-501 | HP UNIVERSAL RETROFIT KIT FOR 4500 INTAK
$4,673.00$4,204.95

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550-501 | HP UNIVERSAL RETROFIT KIT FOR 4500 INTAKclose

Do you have a Mopar, Ford or other type engine you want to install multi-port fuel injection on? No, problem, the Holley HP universal MPI retrofit EFI kits are designed to be used with any V-8 intake manifold. The kit comes with injector bungs and un-machined fuel rails so you can modify to fit any single plane 4bbl intake manifold. The HP universal retrofit kits also come with the necessary wir..

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more_vert550-601 | HP ECU AND HARNESS FOR TPI & STEALTH RAM
$2,734.00$2,459.95

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550-601 | HP ECU AND HARNESS FOR TPI & STEALTH RAMclose

Looking for a plug and play alternative for your stock or built late model factory EFI engine? How about a replacement ECU for your older Holley C950? Holley has you covered. HP EFI ECU and harness kits are designed to be used with popular factory EFI engines as an alternative to the factory ECU and harness or as a replacement for your C950 ECU. The HP allows you to accurately control the fuel and..

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more_vert550-601N | HP ECU AND HARNESS, TPI/HSR, NTK
$2,967.00$2,669.95

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550-601N | HP ECU AND HARNESS, TPI/HSR, NTKclose

Looking for a plug and play alternative for your stock or built late model factory EFI engine? How about a replacement ECU for your older Holley C950? Holley has you covered. HP EFI ECU and harness kits are designed to be used with popular factory EFI engines as an alternative to the factory ECU and harness or as a replacement for your C950 ECU. The HP allows you to accurately control the fuel and..

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more_vert550-604 | MPFI HP ECU AND HARNESS KIT
$2,734.00$2,459.95

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550-604 | MPFI HP ECU AND HARNESS KITclose

Looking for a plug and play alternative for your stock or built late model factory EFI engine? How about a replacement ECU for your older Holley C950? Holley has you covered. HP EFI ECU and harness kits are designed to be used with popular factory EFI engines as an alternative to the factory ECU and harness or as a replacement for your C950 ECU. The HP allows you to accurately control the fuel and..

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more_vert550-604N | HP ECU AND HARNESS, MPFI, NTK
$2,967.00$2,669.95

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550-604N | HP ECU AND HARNESS, MPFI, NTKclose

Looking for a plug and play alternative for your stock or built late model factory EFI engine? How about a replacement ECU for your older Holley C950? Holley has you covered. HP EFI ECU and harness kits are designed to be used with popular factory EFI engines as an alternative to the factory ECU and harness or as a replacement for your C950 ECU. The HP allows you to accurately control the fuel and..

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more_vert550-605 | HP ECU AND UNTERMINATED HARNESS KIT
$2,734.00$2,459.95

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Looking for a plug and play alternative for your stock or built late model factory EFI engine? How about a replacement ECU for your older Holley C950? Holley has you covered. HP EFI ECU and harness kits are designed to be used with popular factory EFI engines as an alternative to the factory ECU and harness or as a replacement for your C950 ECU. The HP allows you to accurately control the fuel and..

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more_vert550-605N | HP ECU AND UNTER, HARNESS, NTK
$2,967.00$2,669.95

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Looking for a alternative for your stock or built late model factory FORD EFI engine? How about a replacement ECU for your older Holley C950? Holley has you covered. HP EFI ECU and harness kits are designed to be used with popular factory EFI engines as an alternative to the factory ECU and harness or as a replacement for your C950 ECU. The HP allows you to accurately control the fuel and ignition..

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more_vert550-606 | FORD MPFI HP ECU AND HARNESS KIT
$2,668.00$2,400.95

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550-606 | FORD MPFI HP ECU AND HARNESS KITclose

Looking for a alternative for your stock or built late model factory FORD EFI engine? How about a replacement ECU for your older Holley C950? Holley has you covered. HP EFI ECU and harness kits are designed to be used with popular factory EFI engines as an alternative to the factory ECU and harness or as a replacement for your C950 ECU. The HP allows you to accurately control the fuel and ignition..

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more_vert550-606N | HP ECU AND HARNESS, FORD MPFI, NTK
$2,912.00$2,619.95

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550-606N | HP ECU AND HARNESS, FORD MPFI, NTKclose

Looking for a alternative for your stock or built late model factory FORD EFI engine? How about a replacement ECU for your older Holley C950? Holley has you covered. HP EFI ECU and harness kits are designed to be used with popular factory EFI engines as an alternative to the factory ECU and harness or as a replacement for your C950 ECU. The HP allows you to accurately control the fuel and ignition..

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more_vert550-614 | TERMINATOR MPFI, 4.8-6.0 EARLY TRUCK
$2,954.00$2,657.95

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550-614 | TERMINATOR MPFI, 4.8-6.0 EARLY TRUCKclose

Get all the great features of Terminator self-tuning EFI in a bolt-on system for GM's popular LS engines! The 550-614 kit controls fuel and spark through the Terminator's new 3.5" touchscreen! Install, answer a few basic questions and drive. No laptop required! Features:For 1997 to 2007 4.8/5.3/6.0 truck engines with 24x crank reluctorKit includes everything you need to control your stock or mild ..

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more_vert550-615 | TERMINATOR MPFI, 4.8-6.0 EARLY TRUCK - W
$4,342.00$3,906.95

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550-615 | TERMINATOR MPFI, 4.8-6.0 EARLY TRUCK - Wclose

Get all the great features of Terminator self-tuning EFI in a bolt-on system for GM's popular LS engines! The 550-615 kit controls fuel, spark, and drive-by-wire through the Terminator's new 3.5" touchscreen! Install, answer a few basic questions and drive. No laptop required! Features:For 1997 to 2007 4.8/5.3/6.0 truck engines with 24x crank reluctor and drive-by-wireKit includes everything you n..

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more_vert550-616 | 2V FORD MODULAR EFI KIT, BOSCH O2, JETRO
$2,954.00$2,657.95

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550-616 | 2V FORD MODULAR EFI KIT, BOSCH O2, JETROclose

Looking for a plug and play kit for your Ford Modular engine? The HP ECU allows you to accurately control the fuel and ignition of your engine plus much more! Is your cam too wild for a MAF? Power adders? You name it, and Holley EFI can handle it.Features:Designed specifically for 1999-2004 Ford Modular 2 Valve EnginesPlug and play with factory sensors; Crank, Cam, TPS, Coolant Temp, etcPlug and p..

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more_vert550-616N | 2V FORD MODULAR EFI KIT, NTK O2, JETRONI
$3,190.00$2,870.95

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550-616N | 2V FORD MODULAR EFI KIT, NTK O2, JETRONIclose

Looking for a plug and play kit for your Ford Modular engine? The HP ECU allows you to accurately control the fuel and ignition of your engine plus much more! Is your cam too wild for a MAF? Power adders? You name it, and Holley EFI can handle it.Features:Designed specifically for 1999-2004 Ford Modular 2 Valve EnginesPlug and play with factory sensors; Crank, Cam, TPS, Coolant Temp, etcPlug and p..

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more_vert550-617 | 4V FORD MODULAR EFI KIT, BOSCH O2, JETRO
$2,954.00$2,657.95

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550-617 | 4V FORD MODULAR EFI KIT, BOSCH O2, JETROclose

Looking for a plug and play kit for your Ford Modular engine? The HP ECU allows you to accurately control the fuel and ignition of your engine plus much more! Is your cam too wild for a MAF? Power adders? You name it, and Holley EFI can handle it.Features:Designed specifically for 1999-2004 Ford Modular 4 Valve EnginesPlug and play with factory sensors; Crank, Cam, TPS, Coolant Temp, etcPlug and p..