Multi-Port EFI Kits
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On Sale
Holley Terminator X Max GM LS Standalone ECU & Wire Harness 550-927T - 24x/EV1
HOLLEY
Now: $1,933.95Was: $2,149.95Holley Terminator X Max GM LS Standalone ECU & Wire Harness 550-920T - 24x/EV1 Take control of your LS engine with Terminator X Max! Don't settle for a junkyard ECU with a cumbersome tuning...550-927TNow: $1,933.95Was: $2,149.95 -
On Sale
Holley Terminator X Max GM LS ECU w/ Trans Control - 58x / EV1
HOLLEY
Now: $1,753.95Was: $1,949.95Holley Terminator X Max GM LS ECU w/ Trans Control - 58x / EV1 58x Crank - 4x Cam - EV1 Injectors - Transmission Control - USB/CAN Tuning Cable - Gen IV 4.8/5.3/6.0 GM Truck Engines and...550-920TNow: $1,753.95Was: $1,949.95 -
On Sale
Holley Terminator X GM LS Standalone ECU & Wire Harness 550-931T - 24x/EV1
HOLLEY
Now: $1,753.95Was: $1,949.95Holley Terminator X GM LS Standalone ECU & Wire Harness 550-931T - 24x/EV1 Take control of your LS engine with Terminator X Max! Don't settle for a junkyard ECU with a cumbersome tuning interface...550-931TNow: $1,753.95Was: $1,949.95 -
On Sale
Holley Terminator X Max GM LS Standalone ECU & Wire Harness 550-918T - 58x/EV6/Trans Control
HOLLEY
Now: $1,753.95Was: $1,949.95Holley Terminator X Max GM LS Standalone ECU & Wire Harness 550-918T - 58x/EV6/Trans Control550-918TNow: $1,753.95Was: $1,949.95 -
On Sale
Holley Terminator X GM LS ECU w/ Trans Control, DBW - 58x / EV6
HOLLEY
Now: $1,933.95Was: $2,149.95Holley Terminator X GM LS ECU w/ Trans Control, DBW - 58x / EV6 58x Crank - 4x Cam - EV6 Injectors - Drive-By-Wire Throttle Body and Transmission Control - USB/CAN Tuning Cable - Gen IV 4.8/5.3/6.0...550-928TNow: $1,933.95Was: $2,149.95 -
On Sale
Holley Terminator X GM LS Standalone ECU - 24x / Multec 2
HOLLEY
Now: $1,303.95Was: $1,449.95Holley Terminator X GM LS Standalone ECU - 24x / Multec 2 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...550-904TNow: $1,303.95Was: $1,449.95 -
On Sale
Holley Terminator X GM LS Standalone ECU & Wire Harness 550-919T - 24x/EV6
HOLLEY
Now: $1,753.95Was: $1,949.95Holley Terminator X GM LS Standalone ECU & Wire Harness 550-919T - 24x/EV6550-919TNow: $1,753.95Was: $1,949.95 -
On Sale
Holley Terminator X Max GM LS ECU - 24x / EV1
HOLLEY
Now: $1,753.95Was: $1,949.95Holley Terminator X Max GM LS ECU - 24x / EV1550-916TNow: $1,753.95Was: $1,949.95 -
On Sale
Holley Terminator X GM LS Standalone ECU & Wire Harness 550-909T - 24x/EV6
HOLLEY
Now: $1,303.95Was: $1,449.95Holley Terminator X GM LS Standalone ECU & Wire Harness 550-909T - 24x/EV6550-909TNow: $1,303.95Was: $1,449.95 -
On Sale
Holley Terminator X Max GM LS ECU w/ Trans Control - 24x / Multec 2
HOLLEY
Now: $1,753.95Was: $1,949.95Holley Terminator X Max GM LS ECU w/ Trans Control - 24x / Multec 2 Take control of your LS engine with Terminator X Max! Don't settle for a junkyard ECU with a cumbersome tuning interface...550-917TNow: $1,753.95Was: $1,949.95 -
On Sale
Holley Terminator X GM LS Standalone ECU & Wire Harness 550-903T - 24x/EV1
HOLLEY
Now: $1,303.95Was: $1,449.95Holley Terminator X GM LS Standalone ECU & Wire Harness 550-903 - 24x/EV1 Take control of your LS engine with Terminator X! Don't settle for a junkyard ECU with a cumbersome tuning interface...550-903TNow: $1,303.95Was: $1,449.95 -
On Sale
Holley Terminator X GM LS Standalone ECU & Wire Harness 550-910T - 58x/EV1
HOLLEY
Now: $1,303.95Was: $1,449.95Holley Terminator X GM LS Standalone ECU & Wire Harness 550-910T - 58x/EV1 Without 3.5" Handheld Take control of your LS engine with Terminator X! Don't settle for a junkyard ECU with a cumbersome...550-910TNow: $1,303.95Was: $1,449.95