Holley 550-850K Sniper EFI 2300 Master Kit - Black

Supports Up To 350 HP - 3.5 in. Handheld Monitor - Return Fuel System

Part Number: 550-850K

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

• (4) wiring connections required for throttle body installation (battery+, battery-, switched ignition, and RPM)
• (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
• Supports up to 350 HP naturally aspirated or 285 HP forced induction
• 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
• Bolt on 2300 flange carburetor replacement
• Self-tuning ECU with intuitive setup calibration wizard creating a base tune
• ECU mounted to throttle body removing extra mounting and reducing RF noise
• 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
• 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

Ford transmissions may require Holley P/N 20-60 Ford Transmission Hardware Kit for proper installation. Installing in a marine setup? Go with Holley P/N 550-850 instead.