Multi-Port EFI Kits

FiTech Ultimate Rebel LS 500HP 92mm EFI System Cable Drive w/o Trans Control 70088 Elevate your LS engine conversion with the Ultimate Rebel LS EFI System – a perfect fusion of aesthetics and performance. Experience the power of modern...

FiTech Ultimate Rebel LS 750HP 102mm EFI System Cable Drive w/ Trans Control 70091 Elevate your LS engine conversion with the Ultimate Rebel LS EFI System – a perfect fusion of aesthetics and performance. Experience the power of modern...

Holley EFI CAN Input/Output Module Kit 554-166 The Holley EFI CAN Input/Output Module can be added to Holley EFI HP, Dominator, Terminator X and Terminator X Max EFI installation. This CAN module will add eight inputs and eight outputs to the system,...

Holley EFI LS (58X/4X) Engine Main Harness Extended for HP EFI/Dominator EFI 558-134 LS2/3/7+ (58x/4x) Engine Main Harness for HP EFI & Dominator EFI These harnesses are designed to fit most 24x and 58x LS engines, from 1997-2012. They are a...

Holley EFI LS (58X/4X) Engine Main Harness for HP EFI/Dominator EFI 558-103 LS2/3/7+ (58x/4x) Engine Main Harness for HP EFI & Dominator EFI This harness has been designed to interface with 58x crank and 4x cam sensors. These engines are commonly...

Holley HP EFI GM LS 24x  ECU & Harness Kit w/ Bosch O2 550-602 Features & Benifits: Intuitive software and features designed for novice and veteran tuners  Fuel and Ignition Control for 4, 6, 8, 10 cylinder even fire engines ...

Holley HP EFI GM LS 24x ECU & Harness Kit w/ NTK O2 550-602N Features & Benifits: Intuitive software and features designed for novice and veteran tuners  Fuel and Ignition Control for 4, 6, 8, 10 cylinder even fire engines  Capable of...

Holley HP EFI GM LS 58x ECU & Harness Kit w/ Bosch O2 550-603 550-602 Features & Benifits: Intuitive software and features designed for novice and veteran tuners  Fuel and Ignition Control for 4, 6, 8, 10 cylinder even fire engines ...

Holley HP EFI GM LS 58x ECU & Harness Kit w/ Bosch O2 550-607 Features & Benifits: Intuitive software and features designed for novice and veteran tuners  Fuel and Ignition Control for 4, 6, 8, 10 cylinder even fire engines  Capable of...

Holley HP EFI GM LS 58x ECU & Harness Kit w/ NTK O2 550-603N Features & Benifits: Intuitive software and features designed for novice and veteran tuners  Fuel and Ignition Control for 4, 6, 8, 10 cylinder even fire engines  Capable of...

Holley Terminator GM LS 4.8,5.3,6.0L 24x MPFI Kit 550-614 Features: For 1997 to 2007 4.8/5.3/6.0 truck engines with 24x crank reluctor/span> Kit includes everything you need to control your stock or mild LS Bosch wideband oxygen sensor included...

Holley Terminator GM LS 58x MPFI Kit w/ DBW & Trans Control 550-613 Features: For GM LS2/3 engines and 2007 to current 4.8/5.3/6.0 truck engines with 58x crank reluctor, drive-by-wire, and 4L60/4L80E transmissions Kit includes everything you need to...