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Add to cartHOLLEY EFI HOLLEY EFI TERMINATOR X MAX – 2007-2012 GEN III HEMI EV6 Injectors – Drive-by-Wire Throttle Body Control Part # 550-1423
Original price was: $2,414.00.$2,012.95Current price is: $2,012.95. -
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Add to cartHOLLEY EFI HOLLEY EFI TERMINATOR X MAX – 2013+ GEN III HEMI EV1 Injectors – Drive-by-Wire Throttle Body Control Part # 550-1424
Original price was: $2,414.00.$2,012.95Current price is: $2,012.95. -
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Add to cartHOLLEY EFI HOLLEY EFI TERMINATOR X MAX – 2013+ GEN III HEMI EV6 Injectors – Drive-by-Wire Throttle Body Control Part # 550-1425
Original price was: $2,414.00.$1,954.95Current price is: $1,954.95. -
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Add to cartHOLLEY EFI HOLLEY EFI TERMINATOR X MAX – GEN III 4.8/5.3/6.0 GM TRUCK ENGINES 24x Crank – 1x Cam – Multec 2 Injectors – Drive-By-Wire Throttle Body and Transmission Control – 3.5 in. Touchscreen Part # 550-927
Original price was: $2,287.00.$1,799.95Current price is: $1,799.95. -
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HOLLEY EFI HOLLEY EFI TERMINATOR X MAX – GEN III 4.8/5.3/6.0 GM TRUCK ENGINES 24x Crank – 1x Cam – Multec 2 Injectors – Drive-By-Wire Throttle Body Control – 3.5 in. Touchscreen Part # 550-930
Original price was: $2,033.00.$1,695.95Current price is: $1,695.95. -
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HOLLEY EFI HOLLEY EFI TERMINATOR X MAX – GEN III 4.8/5.3/6.0 GM TRUCK ENGINES 24x Crank – 1x Cam – Multec 2 Injectors – Transmission Control – 3.5 in. Touchscreen Part # 550-917
Original price was: $2,033.00.$1,645.95Current price is: $1,645.95. -
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HOLLEY EFI HOLLEY EFI TERMINATOR X MAX – GEN IV 4.8/5.3/6.0 GM TRUCK ENGINES AND LS2/LS3 58x Crank – 4x Cam – EV1 Injectors – Drive-By-Wire Throttle Body and Transmission Control – 3.5 in. Touchscreen Part # 550-935
Original price was: $2,287.00.$1,907.95Current price is: $1,907.95. -
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HOLLEY EFI HOLLEY EFI TERMINATOR X MAX – GEN IV 4.8/5.3/6.0 GM TRUCK ENGINES AND LS2/LS3 58x Crank – 4x Cam – EV1 Injectors – Drive-By-Wire Throttle Body Control – 3.5 in. Touchscreen Part # 550-933
Original price was: $2,033.00.$1,695.95Current price is: $1,695.95. -
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HOLLEY EFI HOLLEY EFI TERMINATOR X MAX – GEN IV 4.8/5.3/6.0 GM TRUCK ENGINES AND LS2/LS3 58x Crank – 4x Cam – EV1 Injectors – Transmission Control – 3.5 in. Touchscreen Part # 550-920
Original price was: $2,033.00.$1,645.95Current price is: $1,645.95. -
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HOLLEY EFI HOLLEY EFI TERMINATOR X MAX – GEN IV 4.8/5.3/6.0 GM TRUCK ENGINES AND LS2/LS3 58x Crank – 4x Cam – EV6 Injectors – Drive-By-Wire Throttle Body and Transmission Control – 3.5 in. Touchscreen Part # 550-928
Original price was: $2,287.00.$1,799.95Current price is: $1,799.95. -
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HOLLEY EFI HOLLEY EFI TERMINATOR X MAX – GEN IV 4.8/5.3/6.0 GM TRUCK ENGINES AND LS2/LS3 58x Crank – 4x Cam – EV6 Injectors – Drive-By-Wire Throttle Body Control – 3.5 in. Touchscreen Part # 550-931
Original price was: $2,033.00.$1,645.95Current price is: $1,645.95. -
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HOLLEY EFI HOLLEY EFI TERMINATOR X MAX – GEN IV 4.8/5.3/6.0 GM TRUCK ENGINES AND LS2/LS3 58x Crank – 4x Cam – EV6 Injectors – Transmission Control – 3.5 in. Touchscreen Part # 550-918
Original price was: $2,033.00.$1,645.95Current price is: $1,645.95. -
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Add to cartHOLLEY EFI HOLLEY EFI TERMINATOR X MAX – GEN IV 4.8/5.3/6.0 GM TRUCK ENGINES AND LS2/LS3 58x Crank – 4x Cam – EV6 Injectors – Transmission Control – USB/CAN Tuning Cable Part # 550-918T
Original price was: $1,969.00.$1,594.95Current price is: $1,594.95. -
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HOLLEY EFI HOLLEY EFI TERMINATOR X MAX – LS1/LS6 24x Crank – 1x Cam – EV1 Injectors – Drive-By-Wire Throttle Body and Transmission Control – 3.5 in. Touchscreen Part # 550-926
Original price was: $2,287.00.$1,907.95Current price is: $1,907.95. -
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HOLLEY EFI HOLLEY EFI TERMINATOR X MAX – LS1/LS6 24x Crank – 1x Cam – EV1 Injectors – Drive-By-Wire Throttle Body Control – 3.5 in. Touchscreen Part # 550-929
Original price was: $2,033.00.$1,695.95Current price is: $1,695.95. -
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HOLLEY EFI HOLLEY EFI TERMINATOR X MAX – LS1/LS6 24x Crank – 1x Cam – EV1 Injectors – Transmission Control – 3.5 in. Touchscreen Part # 550-916
Original price was: $2,033.00.$1,645.95Current price is: $1,645.95. -
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HOLLEY EFI HOLLEY EFI TERMINATOR X MAX – LS1/LS6 24x Crank – 1x Cam – EV1 Injectors – Transmission Control – USB/CAN Tuning Cable Part # 550-916T
Original price was: $1,969.00.$1,641.95Current price is: $1,641.95. -
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HOLLEY EFI HOLLEY EFI TERMINATOR X MAX – LS1/LS6 24x Crank – 1x Cam – EV6 Injectors – Drive-By-Wire Throttle Body and Transmission Control – 3.5 in. Touchscreen Part # 550-934
Original price was: $2,287.00.$1,799.95Current price is: $1,799.95. -
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HOLLEY EFI HOLLEY EFI TERMINATOR X MAX – LS1/LS6 24x Crank – 1x Cam – EV6 Injectors – Drive-By-Wire Throttle Body Control – 3.5 in. Touchscreen Part # 550-932
Original price was: $2,033.00.$1,695.95Current price is: $1,695.95. -
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HOLLEY EFI HOLLEY EFI TERMINATOR X MAX – LS1/LS6 24x Crank – 1x Cam – EV6 Injectors – Transmission Control – 3.5 in. Touchscreen Part # 550-919
Original price was: $2,033.00.$1,645.95Current price is: $1,645.95. -
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Add to cartHOLLEY EFI HOLLEY EFI TERMINATOR X UNIVERSAL MPFI KIT Universal MPFI Main Harness – EV1 Injectors – 3.5 in. Touchscreen Part # 550-936
Original price was: $1,587.00.$1,284.95Current price is: $1,284.95. -
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Add to cartHOLLEY EFI HOLLEY LCD TOUCH SCREEN Wide range of tuning and data-monitoring options in a compact 3.5″ LCD display Part # 553-108
Original price was: $399.00.$332.95Current price is: $332.95. -
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Add to cartHOLLEY EFI HOLLEY SMART COIL REMOTE COIL RELOCATION BRACKETS for Holley Smart Coils, Remote Relocation System – Black Finish Part # 561-131
Original price was: $206.00.$196.95Current price is: $196.95. -
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Read moreHOLLEY EFI HOLLEY SMART COIL REMOTE COIL RELOCATION BRACKETS for Holley Smart Coils, Remote Relocation System – Natural Finish Part # 561-125
Original price was: $176.00.$157.95Current price is: $157.95. -
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Add to cartHOLLEY EFI HOLLEY STANDALONE DIGITAL DASH KIT 7″ Digital Dash, Compact & Fully Customizable! Part # 553-109
Original price was: $1,562.00.$1,301.95Current price is: $1,301.95. -
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Add to cartHOLLEY EFI HP EFI ECU & HARNESS KITS Complete 99-04 2 Valve Ford Modular Engine Plug and Play Kit – Jetronic “Bosch Style” injector harness – Bosch Wideband O2 Part # 550-616
Original price was: $2,954.00.$2,699.95Current price is: $2,699.95. -
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Add to cartHOLLEY EFI HP EFI ECU & HARNESS KITS Complete 99-04 2 Valve Ford Modular Engine Plug and Play Kit – Jetronic “Bosch Style” injector harness – Includes NTK Oxygen Sensor Part # 550-616N
Original price was: $3,270.00.$3,125.95Current price is: $3,125.95. -
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Add to cartHOLLEY EFI HP EFI ECU & HARNESS KITS Complete 99-04 4 Valve Ford Modular Engine Plug and Play Kit – Jetronic “Bosch Style” injector harness – Bosch Wideband O2 Part # 550-617
Original price was: $2,954.00.$2,699.95Current price is: $2,699.95. -
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Add to cartHOLLEY EFI HP EFI ECU & HARNESS KITS Complete 99-04 4 Valve Ford Modular Engine Plug and Play Kit – Jetronic “Bosch Style” injector harness – Includes NTK Oxygen Sensor Part # 550-617N
Original price was: $3,270.00.$3,125.95Current price is: $3,125.95. -
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Add to cartHOLLEY EFI HP EFI ECU & HARNESS KITS GM LS1/LS6 (24x crank sensor) with Jetronic/Minitimer (Bosch type) connectors on injector harness (fits Holley 522-xxx injectors), Includes Bosch Oxygen Sensor Part # 550-602
Original price was: $2,899.00.$2,417.95Current price is: $2,417.95. -
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Add to cartHOLLEY EFI HP EFI ECU & HARNESS KITS GM LS1/LS6 (24x crank sensor) with Jetronic/Minitimer (Bosch type) connectors on injector harness (fits Holley 522-xxx injectors), Includes NTK Oxygen Sensor Part # 550-602N
Original price was: $3,146.00.$2,853.95Current price is: $2,853.95. -
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Add to cartHOLLEY EFI HP EFI ECU & HARNESS KITS GM LS2/3/7 (58x crank sensor) with Jetronic/Minitimer (Bosch type) connectors on injector harness (fits Holley 522-xxx injectors), Includes Bosch Oxygen Sensor Part # 550-607
Original price was: $2,899.00.$2,699.95Current price is: $2,699.95. -
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Add to cartHOLLEY EFI HP EFI ECU & HARNESS KITS GM LS2/3/7 (58x crank sensor) with Jetronic/Minitimer (Bosch type) connectors on injector harness (fits Holley 522-xxx injectors), Includes NTK Oxygen Sensor Part # 550-607N
Original price was: $3,146.00.$3,006.95Current price is: $3,006.95. -
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Add to cartHOLLEY EFI HP EFI ECU & HARNESS KITS GM LS2/3/7 (58x crank sensor) with USCAR (EV6 Style) connectors on injector harness, Includes Bosch Oxygen Sensor Part # 550-603
Original price was: $2,899.00.$2,417.95Current price is: $2,417.95. -
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Add to cartHOLLEY EFI HP EFI ECU & HARNESS KITS GM LS2/3/7 (58x crank sensor) with USCAR (EV6 Style) connectors on injector harness, Includes NTK Oxygen Sensor Part # 550-603N
Original price was: $3,146.00.$2,853.95Current price is: $2,853.95. -
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Add to cartHOLLEY EFI HP EFI ECU & HARNESS KITS GM TPI and Holley Stealth Ram™, Includes Bosch Oxygen Sensor Part # 550-601
Original price was: $2,803.00.$2,249.95Current price is: $2,249.95. -
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Add to cartHOLLEY EFI HP EFI ECU & HARNESS KITS GM TPI and Holley Stealth Ram™, Includes NTK Oxygen Sensor Part # 550-601N
Original price was: $3,042.00.$2,906.95Current price is: $2,906.95. -
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Add to cartHOLLEY EFI HP EFI ECU & HARNESS KITS Universal FORD V8 Multi-Point Fuel Injection, Includes Bosch Oxygen Sensor, and Ford V8 Injector Harness. Part # 550-606
Original price was: $2,735.00.$2,613.95Current price is: $2,613.95. -
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Add to cartHOLLEY EFI HP EFI ECU & HARNESS KITS Universal FORD V8 Multi-Point Fuel Injection, Includes NTK Oxygen Sensor, and Ford V8 Injector Harness. Part # 550-606N
Original price was: $2,985.00.$2,489.95Current price is: $2,489.95. -
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Add to cartHOLLEY EFI HP EFI ECU & HARNESS KITS Universal V8 Multi-Point Fuel Injection, Includes Bosch Oxygen Sensor Part # 550-604
Original price was: $2,803.00.$2,249.95Current price is: $2,249.95. -
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Add to cartHOLLEY EFI HP EFI ECU & HARNESS KITS Universal V8 Multi-Point Fuel Injection, Includes NTK Oxygen Sensor Part # 550-604N
Original price was: $3,042.00.$2,536.95Current price is: $2,536.95. -
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Add to cartHOLLEY EFI HP EFI ECU & HARNESS KITS Unterminated Universal Harness, Includes Bosch Oxygen Sensor Part # 550-605
Original price was: $2,803.00.$2,541.95Current price is: $2,541.95. -
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Add to cartHOLLEY EFI HP EFI ECU & HARNESS KITS Unterminated Universal Harness, Includes NTK Oxygen Sensor Part # 550-605N
Original price was: $3,042.00.$2,699.95Current price is: $2,699.95. -
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Add to cartHOLLEY EFI HP EFI ECU HP EFI ECU, USB Cable, and Software Part # 554-113
Original price was: $1,878.00.$1,566.95Current price is: $1,566.95. -
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Add to cartHOLLEY EFI HP SMART COIL IGNITION HARNESS For use with Holley® HP and Dominator ECUs and other EFI systems Part # 558-312
Original price was: $228.00.$217.95Current price is: $217.95. -
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Add to cartHOLLEY EFI INJECTOR DRIVER HARNESS Part # 558-219
Original price was: $286.00.$258.95Current price is: $258.95. -
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Add to cartHOLLEY EFI INJECTOR HARNESS – EARLY TRUCK LS MULTEC 2 INJECTOR HARNESS – EARLY TRUCK Part # 558-214
Original price was: $252.00.$227.95Current price is: $227.95. -
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Add to cartHOLLEY EFI LS COIL EXTENSION HARNESSES Designed to extend your factory coil harness, allowing you to easily remote mount your LS ignition coils. Part # 558-326
Original price was: $110.00.$104.95Current price is: $104.95. -
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Add to cartHOLLEY EFI LS COIL HARNESSES Factory replacement coil harness for stock LS coils, does not fit LS1 or LS6 Coils. Part # 558-321
Original price was: $195.00.$161.95Current price is: $161.95. -
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Add to cartHOLLEY EFI LS1/6 (24X/1X) ENGINE MAIN HARNESS LS1/6 Main Harness for HP EFI & Dominator EFI Part # 558-102
Original price was: $627.00.$522.95Current price is: $522.95.