Multi-Port EFI Kits
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On Sale
Holley Terminator X GM LS Standalone ECU & Wire Harness 550-905T - 58x/EV6
HOLLEY
Now: $1,303.95Was: $1,449.95Holley Terminator X GM LS Standalone ECU & Wire Harness 550-905 - 58x/EV6 (Without Hand-Held) Take control of your LS engine with Terminator X! Don't settle for a junkyard ECU with a cumbersome...550-905TNow: $1,303.95Was: $1,449.95 -
FiTech Ultimate LS EV1 Fuel Injector Harness 70050-4
FiTech Fuel Injection
$58.00FiTech Ultimate LS EV1 Fuel Injector Harness 70050-4 EV1 fuel injector subharness for use with FiTech Ultimate LS. 2 needed per engine, sold individually.70050-4$58.00 -
FiTech Ultimate LS EV6 Fuel Injector Harness 70050-8
FiTech Fuel Injection
$58.00FiTech Ultimate LS EV6 Fuel Injector Harness 70050-8 EV6 fuel injector subharness for use with FiTech Ultimate LS. 2 needed per engine, sold individually.70050-8$58.00 -
On Sale
Holley Terminator X Max GM LS ECU w/ Trans Control, DBW, 3.5" Handheld - 58x / EV1
HOLLEY
Now: $1,978.95Was: $2,199.95Holley Terminator X Max GM LS ECU w/ Trans Control, DBW, 3.5" Handheld - 58x / EV1 58x Crank - 4x Cam - EV1 Injectors - Drive-By-Wire Throttle Body and Transmission Control - 3.5 in. Touchscreen -...550-935Now: $1,978.95Was: $2,199.95 -
On Sale
Holley Terminator X Max GM LS Standalone ECU & Wire Harness 550-934 - 24x/EV6/Trans Control/DBW
HOLLEY
Now: $1,978.95Was: $2,199.95Holley Terminator X Max GM LS Standalone ECU & Wire Harness 550-934 - 24x/EV6/Trans Control/DBW550-934Now: $1,978.95Was: $2,199.95 -
On Sale
Holley Terminator X Max Gen IV GM LS Standalone ECU & Wire Harness 550-933 - 58x/Bosch EV1/DBW
HOLLEY
Now: $1,798.95Was: $1,999.95Holley Terminator X Max Gen IV GM LS Standalone ECU & Wire Harness 550-933 - 58x/Bosch EV1/DBW Take control of your LS engine with Terminator X Max! Don't settle for a junkyard ECU with a...550-933Now: $1,798.95Was: $1,999.95 -
On Sale
Holley Terminator X Max GM LS Standalone ECU & Wire Harness 550-932 - 24x/EV6/DBW
HOLLEY
Now: $1,798.95Was: $1,999.95Holley Terminator X Max GM LS Standalone ECU & Wire Harness 550-932 - 24x/EV6/DBW Take control of your LS engine with Terminator X Max! Don't settle for a junkyard ECU with a cumbersome tuning...550-932Now: $1,798.95Was: $1,999.95 -
On Sale
Holley Terminator X Max GM LS ECU w/ Trans Control, 3.5" Handheld - 58x / EV1
HOLLEY
Now: $1,798.95Was: $1,999.95Holley Terminator X Max GM LS ECU w/ Trans Control, 3.5" Handheld - 58x / EV1 58x Crank - 4x Cam - EV1 Injectors - Transmission Control - 3.5 in. Touchscreen - Gen IV 4.8/5.3/6.0 GM Truck Engines...550-920Now: $1,798.95Was: $1,999.95 -
On Sale
Holley Terminator X Max GM LS Standalone ECU & Wire Harness 550-919 - 24x/EV6/Trans Control
HOLLEY
Now: $1,798.95Was: $1,999.95Holley Terminator X Max GM LS Standalone ECU & Wire Harness 550-919 - 24x/EV6/Trans Control Take control of your LS engine with Terminator X Max! Don't settle for a junkyard ECU with a...550-919Now: $1,798.95Was: $1,999.95 -
On Sale
Holley Terminator X GM LS Standalone ECU w/ 3.5" Handheld - 58x / EV1
HOLLEY
Now: $1,438.95Was: $1,599.95Holley Terminator X GM LS Standalone ECU w/ 3.5" Handheld - 58x / EV1 Take control of your LS engine with Terminator X! Don't settle for a junkyard ECU with a cumbersome tuning interface when you...550-910Now: $1,438.95Was: $1,599.95 -
On Sale
Holley Terminator X GM LS ECU w/ 3.5" Handheld - 24x / EV6
HOLLEY
Now: $1,438.95Was: $1,599.95Holley Terminator X GM LS ECU w/ 3.5" Handheld - 24x / EV6 Take control of your LS engine with Terminator X! Don't settle for a junkyard ECU with a cumbersome tuning interface when you can have...550-909Now: $1,438.95Was: $1,599.95 -
On Sale
Holley Terminator X Max GM LS Standalone ECU w/ 3.5" Handheld - 24x / EV1 / DBW
HOLLEY
Now: $1,798.95Was: $1,999.95Holley Terminator X Max GM LS Standalone ECU w/ 3.5" Handheld - 24x / EV1 / DBW Take control of your LS engine with Terminator X Max! Don't settle for a junkyard ECU with a cumbersome tuning...550-929Now: $1,798.95Was: $1,999.95