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Sniper Fuel Injection System Kit 550-872K; Stealth 4150 650 HP Throttle Body 870 CFM Classic Gold Aluminum

$1,809.95

Part #: 550-872K

Brand: Sniper

UPC: 090127078693

Estimated Ship Date: 7/4/2025 (From manufacturer)

This item ships free with qualifying orders of $150 or more.
See our shipping policy for more details.

Details

  • Bolt on 4150 flange carburetor replacement fit‚Äôs a wide range of factory intake manifolds
  • Throttle body mounted ECU - no extra boxes to mount
  • Supports up to 650HP with four 100lb/hr injectors or 1250HP with eight 100lb/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)
  • Requires use of external fuel pressure regulator, Holley PN# 12-886 or equivalent, set to a base pressure of 58.5 PSI
  • Integrated ignition timing control improves idle stability, drive-ability, and wide open throttle response
  • 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‚Äôt have to be a computer/tuning wiz to have EFI!
  • The included Genuine Bosch LSU 4.9 wideband oxygen sensor provides realtime 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
  • Also available in Black, PN# 550-871 and Shiny, PN# 550-870 finishes

Specifications

Fuel Injection System Kit Series:
Stealth 4150
Injection Style:
Throttle Body
Supported Horsepower:
650 HP
Includes Intake Manifold:
No
Includes Throttle Body:
Yes
Throttle Body Mounting Flange:
4150 Square Bore
Throttle Body CFM:
870 CFM
Throttle Body Material:
Aluminum
Throttle Body Finish:
Classic Gold
Includes Fuel Rails:
No
Number of Injectors Included:
4 Injector
Injector Flow Rate:
100 lbs/hr.
Includes Hand-Held Calibration Module:
Yes
Includes ECM:
Yes
Includes Fuel Pump:
Yes
Includes Fuel Pressure Regulator:
Yes
Sensors Included:
O2, MAP, TPS
Quantity:
Sold As Each