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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:
- 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
4.1 ★★★★★
Based on 2022 reviews
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Product Reviews
★★★★★ 5
Great for face
It’s amazing for cleaning and leaving the skin so clean and smooth
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 15, 2024
★★★★★ 5
Gets make up off easily!
Size: 50 Count (Pack of 1)
The take off makeup really well! I cannot believe how much makeup it takes off. My Climate makeup last and this takes it off. I was using wiped and not doing extra cleaning. My face feels awful in the morning. Using these and cleanser and my face feel good when I wake up.
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Reviewed in the United States on May 17, 2026
★★★★★ 5
Best Makeup Remover!
Size: 50 Count (Pack of 1)
I’m in love with these cloths! I wear waterproof SPF moisturizer, foundation and mascara daily. Before discovering these cloths, removing my makeup was such a chore! Previously I had to use mineral oil to sufficiently break down the waterproof ingredients, wipe the messy oil off with a washcloth, and follow with my regular facial cleanser. Now, I only have to use 1-2 of these cloths to fully remove the products I use and follow with a cleanser! It’s so much simpler and less messy (the mineral oil would always stick around on my bathroom sink). Although these cloths cost more than the oil, they’re a time saver and I don’t put off/sleep with my makeup on anymore! They are very gentle on my skin and don’t leave any scent behind. Highly recommend these!
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Reviewed in the United States on December 19, 2025
★★★★★ 5
Clinique Clean!!
Size: 50 Count (Pack of 1)
I like this product, easy to remove from the package when using. Left my skin clean and refreshed.
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Reviewed in the United States on May 20, 2026
★★★★★ 5
Excellent for sensitive skin/ allergies, best wipes I’ve ever tried!
Size: 50 Count (Pack of 1)
These are the best makeup removing wipes I’ve ever tried and that’s saying a lot.
They are incredible for removing waterproof mascara and zinc sunscreens! For so long I avoided these products, but thanks to these makeup-removing wipes, I no longer have post-sunscreen breakouts and I can easily remove my eye makeup without pulling out any eyelashes.
They’re very good for sensitive skin, too. Other makeup removing wipes (including those specifically formulated with natural ingredients for sensitive skin) caused me to have reactions. The Clinique wipes cause me no problems, stinging, or redness.
With 50 wipes in a pack, they last a really long time. Really good product, total game-changer. My skin looks wonderful after using them.
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Reviewed in the United States on February 23, 2026