not Imitation

Holley Sniper XFLOW 1375 - Black Finish


<< Back

Holley Sniper XFLOW 1375 - Black Finish
Introducing Sniper EFI XFlow! Looking to convert your blow through carbureted turbo engine to EFI? Look no further! The Sniper EFI XFlow 1375 from Holley features eight 120 LB/HR Fuel Injectors and flows 900CFM allowing it to safely support up to 1375HP with forced induction! The XFlow comes with an internal 2.5bar MAP sensor that will safely work on boosted applications up to 21.5 psi. For applications making more than 21.5 psi, there are three additional 0-5v Sensor Inputs which can be used for an external MAP Sensor, Dome Pressure for boost control, and/or oil pressure and fuel pressure sensors. An External Fuel Pressure regulator is required; we recommend part number 12-851 for Forced Induction applications.


    • Supports up to 1375HP Forced Induction with 8x 120 Lb/Hr Injectors
    • Compatible with Draw through or Blow through forced induction applications
    • 2.5Bar MAP Sensor
    • Integrated ignition timing control
    • Built in Single stage progressive nitrous control
    • User friendly Boost Control with handheld adjustability
    • Programmable Target Air Fuel Ratios per Boost level
    • Advanced boost control available via free Sniper EFI tuning software, including Boost vs RPM and Boost vs Time.
    • Three Programmable 0-5V Sensor Inputs for Oil/Fuel/Dome or Nitrous Pressure Sensors
    • Six Programmable Ground Outputs
    • One +5v Reference Output - +5V Power Supply for 0-5v Sensors
    • One Sensor Ground – Ground supply for 0-5v Sensors
    • Dual Pattern bolt on carburetor replacement, designed to fit 4150 Flange & Spread Bore manifolds - (Spread Bore Sealing Plate Part #9006 is recommended)
    • Throttle body mounted ECU – no extra boxes to mount
    • Only 4 Wiring Connections Required! (Battery +, Battery - , Switched Ignition & RPM)
    • Requires an external fuel pressure regulator: P/N 12-848 up to 800 HP or 12-851 for 1000+ HP.
    • 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 realtime Fuel Map Learn!
    • OEM Style TPS/IAC and Fuel Pressure regulator, for years of dependable service.
    • Included 2.5” clamp-on oxygen sensor kit ensures a leak free oxygen sensor installation, with Stainless Steel T-Bolt clamps and a Stainless Steel (Weldable) oxygen sensor flange

Every Sniper EFI Throttle Body that ships from Steve Morris Engines is tested on our in house run stand to guarantee functionality before going to our customers.

NOTE:  When ordering this EFI system, please make sure you have the proper fuel pump, boost-referenced pressure regulator, carb hat, etc.  In the pull-down menu below, we recommend the HOLLEY regulator and fuel pump as seen here:

Part #: 550-545

Price: $1,599.95
Please Call for Availability !
Add SME Boosted Calibration? MUST SHIP FROM SME:
Add Second Calibration?:
Add complete fuel system including regulator, filters and fittings?:
Add SME 4150 carb hat?:

Engine Type (BBC, SBC, LS, etc) *

Engine Displacement? *

Max Engine RPM? *

Enter Camshaft Details *

Do you want the SNIPER to control engine timing? (MUST USE MSD BOX or Hyperspark box!) *

What Power Adder Are You Using? *

Max Boost? *

Which ignition box? *

Is it intercooled? *


Product Q & A

Related Items
Holley Sniper XFLOW 1375 - Gold Finish
Holley Sniper XFLOW 1375 - Gold Finish

Price: $1,599.95
Please Call for Availability !

View More
Holley Sniper XFLOW 1375 - Shiny Finish
Holley Sniper XFLOW 1375 - Shiny Finish

Price: $1,599.95
Please Call for Availability !

View More
Holley Sniper XFLOW 800 - Black Finish
Holley Sniper XFLOW 800 - Black Finish

Price: $1,299.95
Please Call for Availability !

View More