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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
4.3 ★★★★★
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Product Reviews
★★★★★ 5
Good Sunscreen!
Size: 12 Fl Oz (Pack of 1), Style: Sport Lotion SPF 50
Works Great!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
★★★★★ 5
Weightless, sheer, not greasy formula!
Size: 3 Fl Oz (Pack of 1)
I have tried an embarrassing amount of sunscreens from both high end brands sold at places like Sephora and Nordstrom to dermatologist brands to drugstore brands. This cerave sunscreen is literally perfect. For reference I am in my 30s with fair skin and combo skin. For reference I do not like the other cerave mineral sunscreens. They are extremely white. I do like the cerave ultra light daily moisturizer with spf 30 (I think it’s called) but it’s not waterproof. Here are the reasons why I love it SO much:
-waterproof! (Lasts longer during a hot summer day AND I can wear it to the pool/beach with the kids. Truly a do it all sunscreen!)
-wears really well under makeup
-not greasy or oily
-no white cast or film
-cosmetically elegant
-not drying and provides some moisture
-didn’t cause sensitivity, acne or eye burning
-i can even put it on my kids without them complaining
-feels silky soft and weightless. Truly one of a kind.
-cerave is a brand I trust
-great mix of zinc and chemical active ingredients for effective protection
-great for my combo skin
-affordable, decent amount of product
-convenient squeeze bottle that doesn’t leak
I’m so glad I found this! The #1 reason why I love this is because I trust the protection of cerave and it wears beautifully under makeup! The only thing I can think that would make this better would be if it was a spf 50 but it’s perfect otherwise. I’ve already worn it to the pool and it preforms really well, even on a really hot day being outside for a long time! I live in south Texas. This is literally one of the only sunscreens my husband can stand wearing on his face. So it’s man approved for men who hate wearing sunscreen lol! I didn’t even realize it was labeled for face and body. Ive only been wearing it on my face, neck and chest. I need a bigger bottle for whole body application as we go swimming a lot! I purchased this sunscreen with my own money and this is NOT a paid review. I just really like it! :)
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Reviewed in the United States on April 22, 2024
★★★★★ 5
Non-greasy and doesn't damage clothing
Size: 5 Fl Oz (Pack of 1)
I looked hard for a high quality sunscreen that wouldn't turn my clothes orange and this meets my needs. It is a strong, 30 SPF, but it is not heavy or greasy. It is effective, and it does not discolor my clothing.
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Reviewed in the United States on May 5, 2026
★★★★★ 5
A must for summer!
Size: 5 Fl Oz (Pack of 1)
My go-to sunscreen. It’s clean, lightweight, and doesn’t leave that white cast like a lot of mineral formulas. I have blonde extensions and this is one of the only ones I’ve found that doesn’t turn them pink, which is huge. Wears really nicely on the skin and layers well—definitely a staple for me.
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Reviewed in the United States on May 2, 2026
★★★★★ 4
Overall good basic
Size: 3 Fl Oz (Pack of 1)
I was looking at mineral sunscreens because they are more natural, but I found the chalky film they leave on the skin to be undesireable. Still, I did not want a fully chemical formula. I was able to find this hybrid that also has hydrating ingredients and ceramides for the skin. It goes on light and provides great coverage. It is a little shiny/greasy however which is why I dropped a star.
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Reviewed in the United States on January 31, 2026