SKU: 12863025726

GM TPI and Holley Stealth Ram, Includes Bosch Oxygen Sensor

Sale price$1237.47 Regular price$1374.97
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Description

GM TPI and Holley Stealth Ram, Includes Bosch Oxygen SensorHP EFI ECU Harness Kits HP EFI Universal MPI Retrofit Kit, 4500 carburetor style intake manifolds Overview 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 MPI 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

HP EFI ECU Harness Kits

HP EFI Universal MPI Retrofit Kit, 4500 carburetor style intake manifolds

Overview
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 MPI 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.

The following sensors are included: TPS - IAC - MAP - CTS - MAT - Wideband O2 ECU is certified to ISO 8846, SAE J1171 United States Coast Guard Requirements for Ignition Protection Fire Resistance. Holley HP EFI systems are equipped with 4 programmable inputs and 4 programmable outputs that are ideal for most vehicles with a single power adder. This feature allows the user to configure the system to support a wide range of controls including boost control, progressive nitrous, water/meth injection, speed inputs, fuel pump control, AC inputs, timing retard inputs and various other uses. When selecting an ECU, users need to ensure their planned controls can be run with the 4 inputs and 4 outputs as certain combinations may use more I/Os than are available. If more I/Os are required, users should choose the Dominator VMS.
Software and firmware updates can be downloaded here for free.

Features:
  • 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??? 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
  • Integrated water/methanol injection control
  • Self-tuning fuel table strategy greatly simplifies tuning process
  • Individual cylinder fuel and spark control allows you to unlock your engine??????s potential
  • Works with 4, 6, 8 cylinder engines
  • Unique lb/hr based fueling strategy greatly simplifies and commonizes tuning
  • Advanced idle, closed loop, and enrichment strategies allow for very stable operation
  • ECU is fully potted and can be mounted in the engine compartment or interior
  • Sealed automotive and marine grade connectors
  • Allows for use of common OEM sensors as well as customer sensor calibration input
  • Ignition Plug and Play with GM 24x and 58x LSx engines, GM HEI, Ford TFI, magnetic and hall effect trigger, and other ignition systems. New Plug and Play applications in process. Custom settings can be configured to allow many other applications
  • 1-5 Bar MAP sensor capability
  • Two channel knock control sensor Inputs for both one or two wire knock sensors
  • Dedicated fuel and oil pressure inputs
  • Controls both stepper and PWM Idle Air Control (IAC) motors
  • Speed density, Alpha-N, or combination fueling strategies
  • 4 Programmable high or low Pulse Width Modulated (PWM) outputs and 4 fully configurable inputs can be configured for use
  • 4 Stage nitrous oxide control
  • Fully featured nitrous control eliminates the need for a separate nitrous controller device
  • Can be configured Wet??? or Dry??? with closed loop feedback
  • Progressive control based on time, RPM, or boost, requires part # 554-111
  • Lean or rich safety cutoff
  • Full timing retard/control configurability per stage based on RPM or time
  • Integrated Water/Methanol injection control
  • Uses Holley Water/Meth solenoids specially designed and calibrated for use with this EFI system to allow the user to enter Water/Meth flow as a percentage of fuel injector flow for Water/Meth tuning precision unmatched in the industry


Details:
  • Ignition Type: Coil - (No Timing Control)
  • Ignition Type: GM HEI Small Cap
  • Ignition Type: Holley Dual Sync Distributor
  • Injector Connector: Jetronic / Minitimer (Bosch)


Links
EFI selection chart
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 12863025726

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4.3 ★★★★★
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Ira Stroud
Draper, US
★★★★★ 5
Perfect
Size: X-Large, Color: Black, White, Apricot
Was looking for some high neck T-shirts that don’t sag. These are a nice fit for a large body
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 4, 2026
C
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Chef Ruddy
San Leandro, US
★★★★★ 5
Yep. The most comfortable dress shirt there is
Color: White, Size: X-Large
The COOFANDY Men's Casual Button Down Shirt aims to bridge the gap between a traditional dress shirt and a relaxed casual top, and for the most part, it succeeds. This shirt focuses on the "untucked" style, offering a modern, comfortable fit, and is enhanced with a touch of stretch, making it a versatile wardrobe staple. Here's a breakdown of my experience: Pros: Comfortable Stretch Fabric: The standout feature is undoubtedly the stretch fabric. It's a blend most likely incorporating cotton with some elastane, providing a comfortable and forgiving fit. This allows for a full range of motion and prevents that stiff, restrictive feel often associated with dress shirts. Untucked Design: The shirt is designed to be worn untucked, with a slightly curved hemline that looks neat and intentional, not sloppy. This is a welcome departure from the sometimes fussy need to tuck in a traditional shirt. Versatile Style: The shirt is casual enough for a relaxed weekend outing but can also be dressed up slightly for a business-casual environment. It pairs well with jeans, chinos, or even dressier trousers with the right styling. Good Variety of Colors and Patterns: COOFANDY offers a reasonable selection of colors and patterns, from solid basics to subtle stripes and checks. This makes it easier to find something that suits your individual style. Decent Price Point: Compared to similar shirts on the market, the COOFANDY shirt offers a good value proposition. It's not premium, but it's not cheap either, striking a nice balance between quality and affordability. Easy to Care For: The shirt is typically machine washable and doesn't seem to require excessive ironing, which is a significant plus for everyday wear. Cons: Fabric Thickness: While the stretch fabric is comfortable, it is on the thinner side. This means it might not be the best option for colder weather without layering. Also, lighter colors can potentially be a bit see-through. Fit Variability: Some users have noted that the fit can be slightly inconsistent across different colors or patterns. It's advisable to check the sizing chart carefully and maybe read reviews specific to your desired color or pattern to avoid surprises. Button Quality: While generally acceptable, the buttons feel somewhat lightweight and less substantial than on higher-end shirts. Time will tell how durable they are. Not True "Dress Shirt" Quality: It's important to be clear: this isn't a replacement for a high-quality, crisp dress shirt. The fabric and construction are aimed at comfort and casual style, not traditional formality. Overall Impression: The COOFANDY Men's Casual Button Down Shirt is a good option for anyone seeking a comfortable, versatile button-down that can be worn untucked. Its stretch fabric, modern fit, and ease of care make it a convenient choice for everyday wear or for occasions where a slightly more polished but still relaxed look is desired. While it's not without its minor drawbacks (thin fabric, potential fit consistency issues), the positives outweigh the negatives for its price point.
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Reviewed in the United States on January 21, 2025
J
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Jonathan Helm
Grantham, US
★★★★★ 5
Great fit, true to size, comfortable, professional, good quality
Color: Dark Grey, Size: X-Large
I’m 6’4, 220lb with an athletic build. Great fit, good around the chest and sleeves and shirt are perfect length. Great shirt for work or a night out. Well made and comfortable! I’ll be ordering a few more colors without a doubt.
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Reviewed in the United States on May 28, 2026
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DSM
Draper, US
★★★★★ 4
Nice shirts with inconsistent fit
Color: Light Grey, Size: X-Large
I received the black version of this as a gift which I really liked and I got a lot of compliments for it. So I purchased this light gray but it does not fit as well. It's a little tighter and a little shorter. I was hoping they all would be the same fit but apparently they are not.
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Reviewed in the United States on January 31, 2026
L
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Larry Newell
San Leandro, US
★★★★★ 5
Great Shirts…I’ve Bought most Colors.
Color: White-red, Size: Large
I’ve bought a dozen of these shirts in different colors in the last 10-12 months. Very nice material and launders and/or dry cleans great. Outstanding price for a nice looking shirt!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026

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