Supports Up To 650HP - 3.5 in. Handheld Monitor - Carburetor Styling - No Fuel System

Holley's Sniper Stealth 4150 Master Kit gives you carburetor styling but functions just like the Sniper! A 4150 stealth is a great way to upgrade your ride to fuel injection in a cost-efficient way with just 4 simple connections required. Take your build to the next level and take advantage of improved engine performance, better MPG's and easier starting. This kit supports up to 650hp naturally aspirated and 600hp boosted with Four 100 Lb/Hr injectors! You don't have to be a computer wiz or tuning professional to run a sniper kit on your build. Simplicity is what we strive for! Our calibration wizard allows you to just answer a few questions about your engine and the system will begin self-tuning with no laptop required. Use the high resolution 3.5" full color touchscreen for tuning and gauge displays. The stealth 4150 also includes transmission kick down provisions for GM TH350/400, 200R4/700R4 and Ford C4/C6 applications. Once you made your conversion to EFI, don't stop there! Sniper is an Ecosystem! This kit pair's seamlessly together with Holley's Sniper Hyperspark Ignition, Fuel System's, Air Cleaners, Throttle Body & Digital Dash to unlock the full potential of your build.

Features:

  • Bolt on 4150 Flange Carburetor Replacement
  • 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!
  • High Resolution Full Color Touchscreen for Initial Setup, Tuning, and Gauge Displays
  • Self-tuning ECU means you don’t have to be a computer/tuning wiz to have EFI!
  • Only 4 Wiring Connections Required! (Battery +, Battery - , Switched Ignition & RPM)
  • Supports up to 650hp with Four 100 Lb/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.
  • An external fuel pressure regulator is required, set to a base pressure of 58.5 PSI, e.g. 12-886.
  • Integrated ignition timing control
  • The included Genuine Bosch LSU 4.9 Wideband Oxygen Sensor provides real-time Fuel Map Learn!
  • OEM Style TPS/IAC 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
  • Throttle body mounted ECU – no extra boxes to mount
  • vailable in 3 finishes: Shiny, Black and coming soon, Gold

Specs:

Accelerometer Support No
Boost Control No
Brand Holley Sniper EFI
CAN-BUS Support No
CFM 870
Coil Per Cylinder Ignition Support No
Datalogging Support Yes
Distributor Included No
Dry Nitrous Control Yes
e85 Support No
EGT Support No
Emission Code 3
Finish Shiny
Flange Style 4150
Forced Induction Support Yes
Fuel Filter Included No
Fuel Hose Included No
Fuel Injectors Included Yes
Fuel Pressure 58.5 PSI
Fuel Pressure Regulator Included No
Fuel Pump Included No
Grade Type Performance
Height 3.28"
Ignition Timing Control Yes
Individual Cylinder Fuel Corrections No
Injector Size 100 lb/hr @ 58.5 PSI
Inlet / Outlet Size 3/4-16 Female O-Ring (AN 8)
Intake Manifold Included No
Knock Retard Support No
MAP Sensor 2 Bar
Max Horsepower Rating 650 Naturally Aspirated
Model 4150 EFI Conversion Throttle Body
Multi-Stage Nitrous Control Yes
Product Type Sniper Stealth EFI 4150
Progressive Nitrous Control Yes
Sale Category Air and Fuel Delivery
Self-Tuning Yes
Throttle Position Sensor Included Yes
Traction Control Support No
Transmission 700R4/200R4, Ford C4/C6, TH350
User-Tuneable Yes
Wet Nitrous Control Yes
UPC 090127077610
Part Number 550-870
SKU 550-870
Barcode # 90127077610
Brand Holley Sniper
Shipping Weight 4.6000kg
Shipping Width 0.240m
Shipping Height 0.320m
Shipping Length 0.370m

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