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Holley EFI 550-501 HP EFI Universal MPI Retrofit Kits
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Key item features
- Advanced Software: Features new V2 software with Quick Start ignition/fueling for LSx engines, a data logger with scalable axes, and a real-time strip chart viewer.
- Integrated Controls: Includes integrated boost control with multiple strategies (time, gear, RPM, speed) and 4-stage progressive nitrous control.
- Traction Management: Offers traction control with power reduction via timing, nitrous percentage, or boost (requires Davis Technologies Holley Module).
- Flexible Fueling: Supports Quick Start fueling for all engines, an option for VE-based fueling strategy, and fuel map/learn function smoothing.
- Universal Compatibility: Designed for universal MPI retrofit on V-8 intake manifolds, including Mopar and Ford, with injector bungs and un-machined fuel rails.
- Powerful Injector Drivers: Equipped with eight sequentially driven 8:2 peak and hold injector drivers, capable of driving up to 16 low or high impedance injectors.
- Robust Ignition: Features eight-channel Distributorless Ignition (DIS) outputs for direct control of smart ignition coils or Holley DIS coils.
- Onboard Diagnostics: Includes integrated single-channel wideband oxygen sensor control and internal data-logging with 2GB of memory.
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Specs
- Compatible carsMopar, Ford
- Vehicle makeMopar
- Fuel injection accessory & part typeMPI Retrofit Kits
- BrandHOLLEY EFI
- Automotive parts divisionPerformance
- Vehicle fitment typeSpecific
Current price is USD$4,749.95
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Columbus, 43215
Arrives by Fri, Feb 20
|Sold and shipped by SuperShops
4.4071428571428575 stars out of 5, based on 280 seller reviews(4.4)280 seller reviews
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Starting from $4,749.95
Compare with similar items
| Product | Viewing this itemHolley EFI 550-501 HP EFI Universal MPI Retrofit Kits ![]() $4,749.95 current price $4,749.95 | Holley EFI 558-502 Fuel Injection Harness ![]() $972.95 current price $972.95 | Holley EFI 550-1507 Terminator X Max Ford Coyote - 2011-2012 w/ Ti-VCT ![]() $3,149.95 current price $3,149.95 | Holley EFI 550-1006 Terminator X Stealth 4150, Gold ![]() $2,249.95 current price $2,249.95 | Holley EFI 550-942 Terminator X Max Universal MPFI Kit w/ Transmission Control ![]() $1,899.95 current price $1,899.95 | Holley EFI 550-443 Fuel Injection Throttle Body ![]() $3,439.99 current price $3,439.99 | Holley EFI 550-1621 Holley EFI Terminator X Max GM Gen V LT Late Direct Injection Kit ![]() $3,149.95 current price $3,149.95 | Holley EFI 550-616 HP EFI ECU & Harness Kits ![]() $3,149.95 current price $3,149.95 |
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| Vehicle make | MoparHolley EFI 550-501 HP EFI Universal MPI Retrofit Kits | GMHolley EFI 558-502 Fuel Injection Harness | FordHolley EFI 550-1507 Terminator X Max Ford Coyote - 2011-2012 w/ Ti-VCT | FordHolley EFI 550-1006 Terminator X Stealth 4150, Gold | -Holley EFI 550-942 Terminator X Max Universal MPFI Kit w/ Transmission Control | FordHolley EFI 550-443 Fuel Injection Throttle Body | GMHolley EFI 550-1621 Holley EFI Terminator X Max GM Gen V LT Late Direct Injection Kit | FordHolley EFI 550-616 HP EFI ECU & Harness Kits |
|---|---|---|---|---|---|---|---|---|
| Fuel injection accessory & part type | MPI Retrofit KitsHolley EFI 550-501 HP EFI Universal MPI Retrofit Kits | Fuel Injection HarnessHolley EFI 558-502 Fuel Injection Harness | -Holley EFI 550-1507 Terminator X Max Ford Coyote - 2011-2012 w/ Ti-VCT | Fuel InjectorsHolley EFI 550-1006 Terminator X Stealth 4150, Gold | -Holley EFI 550-942 Terminator X Max Universal MPFI Kit w/ Transmission Control | Throttle BodyHolley EFI 550-443 Fuel Injection Throttle Body | Fuel Injection KitHolley EFI 550-1621 Holley EFI Terminator X Max GM Gen V LT Late Direct Injection Kit | Injector HarnessHolley EFI 550-616 HP EFI ECU & Harness Kits |
| Automotive parts division | PerformanceHolley EFI 550-501 HP EFI Universal MPI Retrofit Kits | PerformanceHolley EFI 558-502 Fuel Injection Harness | PerformanceHolley EFI 550-1507 Terminator X Max Ford Coyote - 2011-2012 w/ Ti-VCT | PerformanceHolley EFI 550-1006 Terminator X Stealth 4150, Gold | PerformanceHolley EFI 550-942 Terminator X Max Universal MPFI Kit w/ Transmission Control | PerformanceHolley EFI 550-443 Fuel Injection Throttle Body | PerformanceHolley EFI 550-1621 Holley EFI Terminator X Max GM Gen V LT Late Direct Injection Kit | PerformanceHolley EFI 550-616 HP EFI ECU & Harness Kits |
| Vehicle fitment type | SpecificHolley EFI 550-501 HP EFI Universal MPI Retrofit Kits | SpecificHolley EFI 558-502 Fuel Injection Harness | SpecificHolley EFI 550-1507 Terminator X Max Ford Coyote - 2011-2012 w/ Ti-VCT | UniversalHolley EFI 550-1006 Terminator X Stealth 4150, Gold | SpecificHolley EFI 550-942 Terminator X Max Universal MPFI Kit w/ Transmission Control | SpecificHolley EFI 550-443 Fuel Injection Throttle Body | SpecificHolley EFI 550-1621 Holley EFI Terminator X Max GM Gen V LT Late Direct Injection Kit | SpecificHolley EFI 550-616 HP EFI ECU & Harness Kits |
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About this item
Product details
HP EFI Universal MPI Retrofit Kit, 4500™ carburetor style intake manifolds;
Do you have a Mopar, Ford or other type engine you want to install multi-port fuel injection on? No, problem, the Holley HP universal retrofit EFI kits are designed to be used with any V-8 intake manifold. The kit comes with injector bungs and un-machined fuel rails so you can modify to fit any single plane 4bbl intake manifold. The HP universal retrofit kits also come with the necessary wiring, ECU, sensors and throttle body. Just select the fuel pump and injectors of choice and you are off and running.;
Do you have a Mopar, Ford or other type engine you want to install multi-port fuel injection on? No, problem, the Holley HP universal retrofit EFI kits are designed to be used with any V-8 intake manifold. The kit comes with injector bungs and un-machined fuel rails so you can modify to fit any single plane 4bbl intake manifold. The HP universal retrofit kits also come with the necessary wiring, ECU, sensors and throttle body. Just select the fuel pump and injectors of choice and you are off and running.;
- NEW V2 SOFTWARE FEATURES
- Quick Start ignition and fueling strategy for LS x Engines
- Data Logger. Scalable axes, Smoothing, Multiple graph view ability, Pre-defined notes fields and many more
- Strip Chart Real-Time Data Viewer
- Integrated Boost Control - Boost vs Time, Boost vs Gear (Time or RPM), Boost vs RPM, Boost vs Speed, Launch control. Boost launch builder, Over-boost safeties, Boost scramble
- Traction Control - Power reduction via timing, nitrous percentage or boost (Requires Davis Technologies Holley Module)
- Quick Start fueling for all engines
- Option for VE based fueling strategy
- Fuel Map and Learn Function Smoothing
- Configurable User Password Protection
- Fully Configurable lap top Gauge Panel
- FEATURES
- Optional 5.7 inch full-color touchscreen LCD allows easy on-the-fly tuning, data-logging or can be used as an easy to see graphical gauge panel
- Eight sequentially driven 8:2 peak and hold injector drivers, capable of driving up to 16 low or high impedance injectors as a standard feature. Multiple staged injector strategies
- Eight channel Distributorless Ignition (DIS)outputs capable of directly driving Smart ignition coils or Holley DIS coils. Will drive 2 wire coils with the addition of PN 554-112 high current coil driver module
- Plug and Play control of factory GM 24x and 58x LSx engines
- Integrated single channel wide band oxygen sensor control. Works with NTK or Bosch sensors
- Internal data-logging standard with a huge 2GB of memory
- 4 Stage progressive nitrous control
- Turbo boost control
info:
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it.
Specifications
Compatible cars
Mopar, Ford
Vehicle make
Mopar
Fuel injection accessory & part type
MPI Retrofit Kits
Brand
HOLLEY EFI
Warranty
Warranty information
1 year easy exchange warranty directly thorough AutoPartsWAY. Additional manufacturer warranty may be available through the manufacturer directly.
Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.
Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.
Warnings
Warning Text
California Proposition 65
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