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not Imitation

GM Engine Kits

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!

Holley 556-128 Big Wire Coil-Near-Plug Smart Coil Kit

Part #: 1460

$788.95
$709.95

Holley HP:EFI 550-602N LS1/LS6 (24x crank sensor)

Part #: 25308

$2,195.99
$1,975.99

Holley 550-602 LS1/LS6 24X BOSCH-Style Injectors

Part #: 932

$2,021.95
$1,819.95

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Holley 550-608 LS1/LS6 24X BOSCH INJ

Part #: 1158

$1,999.95
$1,799.95

Holley 550-609 LS1/LS6 24X BOSCH INJ

Part #: 1157

$2,888.95
$2,599.95

Holley 550-603 LS2/3/7 58X USCAR INJ

Part #: 933

$2,021.95
$1,819.95

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Holley 550-607 LS2/3/7 58X BOSCH INJ.

Part #: 934

$2,021.95
$1,819.95

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Holley Hp:EFI ECU & Harness kit 550-603N GM LS2/3/7

Part #: 25309

$2,195.99
$1,975.99

Holley 550-611 LS2/LS3 58X USCAR INJ

Part #: 1160

$2,888.95
$2,599.95

Holley 550-612 LS2/LS3 58X USCAR INJ

Part #: 1159

$2,888.95
$2,599.95

Holley 550-613 LS2/LS3 58X USCAR INJ

Part #: 1156

$3,111.95
$2,799.95

Terminator GM LS MP-EFI 97-07 Trk /4.8/5.3/6.0

Part #: HLY550-614

$1,900.99

Holley 550-610 Truck LS 58X USCAR INJ

Part #: 1163

$1,999.95
$1,799.95

Holley 550-614 Truck LS 24X MULTEC2INJ

Part #: 1161

$1,999.95
$1,799.95

Holley 550-615 Truck LS 24X MULTEC2 INJ

Part #: 1165

$2,888.95
$2,599.95

Holley 550-622 Truck LS 24X MULTEC2 INJ

Part #: 1162

$2,888.95
$2,599.95

Holley 550-623 Truck LS 24X MULTEC2 INJ

Part #: 1164

$3,111.95
$2,799.95