SKU: 46940940944

HOLLEY SUPER SNIPER STEALTH 4150 - EFI - up to 1250HP - BLACK FINISH - 550-877

Sale price$1012.47 Regular price$1124.97
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Ships within 48 hours · Estimated delivery Aug 4 - Aug 9

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Description

HOLLEY SUPER SNIPER STEALTH 4150 - EFI - up to 1250HP - BLACK FINISH - 550-877Overview: The Super Sniper Stealth 4150 EFI system from Holley features 8, 100LB HR Fuel Injectors capable of supporting up to 650 HP naturally aspirated or 1250 HP on forced induction applications. The Sniper Stealth 4150 ECU is capable of fuel map self learning and ignition timing control, improving idle stability, drivability, and wide open throttle horsepower! Did we mention that the Stealth 4150 also includes transmission kick down provisions for

Overview:

The Super Sniper Stealth 4150 EFI system from Holley features 8, 100LB/HR Fuel Injectors capable of supporting up to 650 HP naturally aspirated or 1250 HP on forced induction applications. The Sniper Stealth 4150 ECU is capable of fuel map self-learning and ignition timing control, improving idle stability, drivability, and wide-open throttle horsepower! Did we mention that the Stealth 4150 also includes transmission kick down provisions for GM TH350/400, 200R4/700R4 and Ford C4/C6 applications.

Features:

  • Bolt on 4150 Flange Carburetor Replacement
  • Throttle body mounted ECU - no extra boxes to mount
  • Supports up to 1250hp with Eight 100 Lb/Hr Injectors!
  • All of the wiring exits below the rear fuel injector cover, for a completely stealth installation.
  • Timed spark part for vacuum advanced distributors located under the front fuel bowl, for easy access to the distributor.
  • Programmable inputs and outputs
  • Three Programmable 0-5V Sensor Inputs for Oil/Fuel/Dome or Nitrous Pressure Sensors
  • Six Programmable Ground Outputs
  • One +5v Reference Output - +5V Power Supply for 0-5v Sensors
  • One Sensor Ground - Ground supply for 0-5v Sensors
  • Air entry is machined to fit most stock style air cleaners with air cleaner locator provisions.
  • Only 4 Wiring Connections Required! (Battery +, Battery - , Switched Ignition & RPM)
  • External fuel pressure regulator required, set to a base pressure of 58.5 PSI, such as 12-886.
  • Integrated ignition timing control
  • High Resolution Full Color Touchscreen for Initial Setup, Tuning, and Gauge Displays
  • Simple Calibration Wizard (answer a few questions about your engine and it creates the base map, then starts tuning on its own!) - NO laptop required!
  • Self-tuning ECU means you don't have to be a computer/tuning wiz to have EFI!
  • The included Genuine Bosch LSU 4.9 Wideband Oxygen Sensor provides real-time Fuel Map Learn!
  • OEM Style TPS/IAC, for years of dependable service.
  • Available in 3 finishes: Shiny, Black and coming soon, Gold
  • Included clamp-on oxygen sensor kit for 2.25" exhaust ensures a leak free oxygen sensor installation, with Stainless Steel T-Bolt clamps and a Stainless Steel (Weldable) oxygen sensor flange

 

Application:

Year Make Model Submodel Engine Size
Universal

 

Specs:

Brand Holley Sniper EFI
CFM 870
Emission Code 3
Finish Black
Flange Style 4150
Fuel Pressure 58.5 PSI
Height 3.28"
Injector Size 100 lb/hr @ 58.5 PSI
Inlet / Outlet Size 3/4-16 Female O-Ring (AN 8)
MAP Sensor 2Bar
Max Horsepower Rating 650 Naturally Aspirated
Model 4150 EFI Conversion Throttle Body
Product Type Sniper Stealth EFI
Transmission 700R4/200R4
Transmission Ford C4/C6
Transmission TH350
Warning California Proposition 65
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: 46940940944

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4.6 ★★★★★
Based on 15 reviews
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MrPasghetti
Omaha, US
★★★★★ 4
Nice to have
Color: Brown, Size: 10.2" x 8.4" x 1.8"
Good: It's a good sized leather tray for the price. I'm able to keep my keys, wallet, tv remote, and watch flat within the box. There's not much else to say, it's a leather tray, it just... works. It gives me piece of mind knowing that I'll always find my accessories and belongings nicely tucked into this tray. Bad: I'm a fair reviewer, if a product wows me I'll say it wows me. This does not wow me in the craftsmanship department. The product I received contains the leather tray and a leather "floor". The leather floor is a separate piece that sits at the bottom of the tray which completes the complete leather look and provides some cushion to the things inside. This leather floor did not fit perfectly within the confines of the tray. One edge sits slightly tilted upward. To be completely fair, this is a very easy fix. I assumed that the stitching was simply applied too tightly and causes the floor to 'crunch'. I simply reduced the tightness of the stitching and it's perfect now. However, I cannot give it the full 5 star rating I wanted because not everyone is keen on solving issues like this. When people order things, I assume that most people would like a product that looks and feels great straight from the box. Verdict: Would still recommend. Despite this being a somewhat niche product it really helps with quality of life. I no longer have to go looking for my keys, wallet, or tv remote between my couch cushions. I know exactly where I'll find them every time and this saves an exponential amount of time in the mornings. As a bonus, the color is really nice and dark chocolate brown which goes with most things and leather is just a nice luxury to have.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 5, 2020
D
Verified Purchase
Doc Angie
Pawtucket, US
★★★★★ 5
A perfect catch y’all
Color: Dark Grey Shagreen, Size: 10.2" x 8.4" x 1.8"
I use this as a catch on on my dresser and it is sturdy and provides a bit of chicness and beauty that I can just throw all of my things in and keep it keep myself organized. It is leather, and well constructed so you can’t go wrong. And if you spill anything, just take a wet wipe and wipe it up. I highly recommend.
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Reviewed in the United States on October 31, 2025
D
Verified Purchase
DB
Bozeman, US
★★★★★ 5
Great looking organizer
Color: Brown, Size: 10.2" x 8.4" x 1.8"
Very nice and quality material. Masculine looking organizer; looks great on top of dresser. Perfect size. I am very pleased with this product. Highly recommend.
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Reviewed in the United States on December 29, 2025
K
Verified Purchase
Ken01
San Leandro, US
★★★★★ 5
Holds stuff nicely - classic addition for the bureau!
Color: Brown, Size: 10.2" x 8.4" x 1.8"
Ordered this as a gift for my son, who always seems to have a small pile of "stuff" accumulating on his bureau. He is not a fan of leather, so this tray was perfect! And it was a great value for the price. Ordered it in brown. It has a nice feel to it and (color-wise has a rich tone). Perfect for his keys, spare change he finds in his pockets, extra watchbands, whatever. Makes a great gift! I definitely recommend!
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Reviewed in the United States on December 27, 2022
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Verified Purchase
lmrod
West Palm Beach, US
★★★★★ 5
Nice design
Color: Dark Grey Shagreen, Size: 10.2" x 8.4" x 1.8"
The design is nice and doesn’t take up too much space, but it holds a lot more than I expected. The materials feel sturdy and quality, and it looks great. It's made it so much easier to stay organized with our keys and wallets.
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Reviewed in the United States on August 24, 2025

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