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Ships within 48 hours · Estimated delivery Jul 10 - Jul 15
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Description
Holley 550-870K Sniper Stealth 4150 Self-Tuning Fuel Injection System Master KitOverview: The Sniper Stealth 4150 EFI system from Holley features 4, 100LB HR Fuel Injectors capable of supporting up to 650 HP naturally aspirated or 600 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
Overview:
The Sniper Stealth 4150 EFI system from Holley features 4, 100LB/HR Fuel Injectors capable of supporting up to 650 HP naturally aspirated or 600 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. Part # 34-42 is required for a bolt-in installation.
Features:
- Bolt on 4150 Flange Carburetor Replacement
- Throttle body mounted ECU - no extra boxes to mount
- Supports up to 650hp with Four 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.
- 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 and Fuel Pressure regulator, for years of dependable service.
- 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
- Available in 3 finishes: Shiny, Black and coming soon, Gold
Application:
| Year | Make | Model | Submodel | Engine Size |
|---|---|---|---|---|
| Universal |
Specs:
| Brand | Holley Sniper EFI |
|---|---|
| CFM | 870 |
| Emission Code | 3 |
| Finish | Shiny |
| 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
4.6 ★★★★★
Based on 1346 reviews
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Product Reviews
★★★★★ 4
Minimalist, imperfect but certainly reasonably good for the price
This is a set of 16 pieces, all of which are usable and practically sized, including the coffee/tea/beverage cups. While this is absolutely not high quality it is more than expected for $30 or so. The dishes are on the heavier side, not very lightweight brittle. I doubt they are break resistant. While they appear bone white, which they are, I'm not sure they are pure white (almost.) Some dishes will feature some small imperfections, like a small dot here and there, nothing too terrible. Stacking them is where you'll notice that the large plates are absolutely not perfect and you'll see that the ends are not perfect by rotating the plates and you'll notice areas they go slightly up and down. Again, nothing really noticeable or terrible unless you stack them.
If you've got a dorm room, don't care too much about having anything more than a minimalist set of reasonable quality dishes that you won't get embarrassed about for serving casual meals, this makes for a decent set. Hopefully they are safe (supposedly Amazon says they are) and they are made in China.
If you're wondering about branding, on the bottom of each item there is a conspicuous amazon basics logo.
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Reviewed in the United States on May 24, 2018
★★★★★ 5
Great starter set
They are very nice. Great starter set. They don’t feel cheap. The only issue I have is that the bowls are small. That is only picture I took.
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Reviewed in the United States on May 15, 2026
★★★★★ 5
Nice everyday dishes for the price.
Nice everyday dishes for the price. The plates and bowls are generous sizes. The coffee mugs are a bit small if that is a concern. The dishes are sturdy and should hold up well for everyday use.
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Reviewed in the United States on January 28, 2026
★★★★★ 5
Beautiful assortment of 4 place setting!
Beautiful assortment for 4 are remarkably nice to use and look at. The shapes are perfect design.
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Reviewed in the United States on May 17, 2026
★★★★★ 5
Worth The Money !
Been so many years ago I bought new Dinnerware, not sure how long?
But very pleased with this set! and the price!!
Packaging was great! No broken pieces.
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Reviewed in the United States on March 4, 2026