MENU

Sniper EFI Releases new Stealth 4150 Models!

By: Skylar Drake11/01/2019 < Back to Blog Home

Consumers have been asking for a throttle body injection that looks like a double-pumper carburetor and Holley's Sniper EFI division has responded with the new Sniper Stealth 4150. Modeled after an Ultra XP carburetor, the Stealth 4150 features four 100 lb/hr injectors, dual feed configuration and supports up to 650 hp naturally aspirated! Other features include the high pressure fuel crossover line (already in the box), rear exit wiring for easier routing and a more stealth look, and a timed spark port located under the front injector cover (fuel bowl) making this a convenient and very capable system. Read on to learn more!



The Sniper Stealth 4150 ECU is capable of fuel map self-learning and ignition timing control, improving idle stability, driveability, 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.
  • Bolt on 4150 flange carburetor replacement.
  • Throttle body mounted ECU – no extra boxes to mount.
  • All of the wiring exits below the rear fuel injector cover, for a completely stealth installation.
  • Air entry is machined to fit most stock style air cleaners with air cleaner locator provisions.
  • Self-tuning ECU means you don’t have to be a computer/tuning wiz to have EFI!
  • Supports up to 650HP with Four 100lb/hr Injectors.



  • Master Kits are available and include complete fuel system with an external fuel pressure regulator preset to 58.5psi, 20ft of 3/8" Vapor Guard Fuel Hose, Fuel Pump, Filters, necessary hardware and bulkhead fitting to return fuel into the tank!



    For more information on the products you see listed here, check out the "Featured Recommendations" below. To see other Sniper EFI offerings (including BBD, 2300 and 4500 flange systems), check out the brand page HERE.

    Featured Products
       X  Holleydays
       X  Holleydays