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Description
Holley 550-849K Sniper EFI 2300 Master Kit - ShinySupports Up To 350 HP 3. 5 in. Handheld Monitor Return Fuel System Part Number: 550 849K With the Sniper 2300, you can put an end to cold start issues, hesitations, vapor lock, and engine flooding on many vehicle applications. Our kit is the easiest way to upgrade to EFI in a cost efficient package with just four connections to get started. This kit is capable of supporting up to 350 HP naturally aspirated or 285 HP forced induction with (2) 100 lb.
Supports Up To 350 HP - 3.5 in. Handheld Monitor - Return Fuel SystemPart Number: 550-849K
With the Sniper 2300, you can put an end to cold start issues, hesitations, vapor lock, and engine flooding on many vehicle applications. Our kit is the easiest way to upgrade to EFI in a cost-efficient package with just four connections to get started. This kit is capable of supporting up to 350 HP naturally aspirated or 285 HP forced induction with (2) 100 lb./hr. fuel injectors. Sniper 2300 was designed to be installed at home in your garage with minimal tools and the support of Holley's comprehensive installation manuals and online videos. The high resolution 3.5” LCD touchscreen user-friendly setup wizard has you answer a few simple questions about your engine and the system will begin self-tuning with no laptop or tuning experience required. This kit also includes 20 ft. of 3/8" Earl's Vapor Guard fuel hoses, fuel pump, fuel filters, and all necessary hardware for installation to return fuel into your fuel tank. For a more comprehensive installation and maximizing performance, check out our HyperSpark Ignition, air cleaners, and digital dashes.
Features and Benefits
• Self-tuning ECU with intuitive setup calibration wizard creating a base tune
• Supports up to 350 HP naturally aspirated or 285 HP forced induction
• Bosch LSU 4.9 Wideband O2 Sensor provides real time fuel map learning, with a no welding stainless steel O2 flange and T-bolt clamps
• Accepts many common 5 1/8" OEM or aftermarket air cleaner assemblies
• Bolt on 2300 flange carburetor replacement
• (2) 100 lb./hr. fuel injectors with complete fuel system consisting of 20 ft. of 3/8" Earl's Vapor Guard fuel hoses, fuel pump, fuel filters, and all necessary hardware
• 3.5” LCD touchscreen handheld for real time data logging, initial setup, tuning, and gauge displays to view and monitor parameters with SD card to save key information
• Internal fuel pressure regulator eliminates the hassle of plumbing an external fuel pressure regulator (Preset to 58.5 PSI)
• Equipped with C4 / C6 Ford transmission kickdown lever along with TH350, TH400, and 700R4 provisions
• (4) wiring connections required for throttle body installation (battery+, battery-, switched ignition, and RPM)
• ECU mounted to throttle body removing extra mounting and reducing RF noise
Ford transmissions may require Holley P/N 20-60 Ford Transmission Hardware Kit for proper installation. For marine installations, we suggest Holley P/N 550-849.
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
4.0 ★★★★★
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Product Reviews
★★★★★ 5
Great shelves, strong, secure, sturdy, decent size, unbeatable price.
Color: White, Number Of Shelves: 4, Size: 15.7in
Easy installation fits where we wanted them. Stable strong secure snug fit. Cleans easily with dust wipe. I would recommend buying these.
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Reviewed in the United States on May 19, 2026
★★★★★ 3
The shelves sag away from the wall overtime
Color: White, Number Of Shelves: 2, Size: 15.7in, Color: White, Number Of Shelves: 2, Size: 15.7in
Although the wood quality and finish of the shelf are clean and well-made, the main issue is that the shelves begin to sag over time while holding around 10 pounds, even though the product listing claims they can support up to 20 pounds. They may perform better on a brick wall, but on drywall you should be cautious.
To fix the problem, I had to purchase floating shelf brackets for support, which solved the sagging issue. However, this defeats the purpose of the “floating” aesthetic. Since the shelf is in my bedroom, I can overlook it, but I personally wouldn’t install these in a common area if I wanted a clean floating look.
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Reviewed in the United States on May 27, 2026
★★★★★ 5
Love this
Color: Rustic Brown, Number Of Shelves: 4, Size: 15.7in
Love these shelves so easy to put up so beautifully made and really enjoy the way they set on my wall very sturdy also!
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Reviewed in the United States on May 21, 2026
★★★★★ 5
Looks nice, easy to install
Color: Rustic Brown, Number Of Shelves: 2, Size: 22in
This shelf is lightweight, looks nice, and was easy to install. It comes with a little level to help you install it properly. There are plenty of mounting holes to choose from, so it is easy to screw it directly into a stud, or to just use holes that are convenient for you. It comes with a plethora of mounting hardware.
I mounted mine a bit high up and chose to mount it upside down so that I wouldn't see the three screws that hold the shelf to the mounting bracket.
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Reviewed in the United States on April 8, 2026
★★★★★ 5
End table
Color: Black, Item Package Quantity: 2
We did not keep these due to size. Advertised correctly but we miss read. Were shipped in a timely fashion. Product look good.
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Reviewed in the United States on March 12, 2026