Outstanding service | Free Ground Shipping | No Backorders Ever | 30 Day Return Policy

Skip to product information
1 of 7

Sniper 550-871 - Holley Stealth 4150 - Black

Sniper 550-871 - Holley Stealth 4150 - Black

Sniper | 550-871
SKU: SNIP-550-871
Regular price $1,706.99 USD
Regular price $1,856.95 USD Sale price $1,706.99 USD
Sale Sold out
Shipping calculated at checkout.

Out of stock

Quantity

DISCLAIMER: This Item Is Special Ordered, which may have cancellation or return restrictions. Please see our terms and conditions for more information.

Sniper 550-871 - Holley Stealth 4150 - Black

Holley Sniper Stealth 4150 - Black

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

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.

  • Supports up to 650hp with Four 100 Lb/Hr Injectors!
  • 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!
  • Throttle body mounted ECU &ndash, no extra boxes to mount
  • Available in 3 finishes: Shiny, Black and coming soon, Gold
  • Air entry is machined to fit most stock style air cleaners with air cleaner locator provisions.
  • OEM Style TPS/IAC, for years of dependable service.
  • Self-tuning ECU means you don’t have to be a computer/tuning wiz to have EFI!
  • Throttle body mounted ECU – no extra boxes to mount
  • Bolt on 4150 Flange Carburetor Replacement
  • All of the wiring exits below the rear fuel injector cover, for a completely stealth installation.
  • Integrated ignition timing control
  • The included Genuine Bosch LSU 4.9 Wideband Oxygen Sensor provides real-time Fuel Map Learn!
  • Only 4 Wiring Connections Required! (Battery +, Battery - , Switched Ignition & RPM)
  • High Resolution Full Color Touchscreen for Initial Setup, Tuning, and Gauge Displays
  • 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
Accelerometer Support: No
Boost Control: No
Brand: Holley Sniper EFI
CAN-BUS Support: No
Category: Air and Fuel Delivery
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: Black
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
part type: Fuel Injection Conversion Kit
Product Type: Sniper Stealth EFI 4150
Progressive Nitrous Control: Yes
Self-Tuning: Yes
Sub Category: Service Kits
Throttle Position Sensor Included: Yes
Traction Control Support: No
Transmission: 700R4/200R4, Ford C4/C6, TH350
User-Tuneable: Yes
Warning: California Proposition 65
Wet Nitrous Control: Yes
View full details