Holley Sniper Stealth 4150 Master Kit - Gold Finish
4 Barrel Fuel Injection Conversion - Self-Tuning Kit + Handheld EFI Monitor - Gold Finish
$1,409.95 Holleydays Price
Starting at $124 a month with Learn More
- Bolt on 4150 flange carburetor replacement fit’s 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’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 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
|Brand||Holley Sniper EFI|
|Fuel Pressure||58.5 PSI|
|Injector Size||100 lb/hr @ 58.5 PSI|
|Inlet / Outlet Size||3/4-16 Female O-Ring (AN 8)|
|Max Horsepower Rating||650 Naturally Aspirated|
|Model||4150 EFI Conversion Throttle Body|
- Service Bosch LSU 4.9 Oxygen Sensor$99.86Qty:
- SNIPER EFI TO HOLLEY DUAL SYNC HARNESS$26.25Qty:
- Hooker Blackheart Oxygen Sensor O2 Bung 2.5" Clamp-On style$30.61Qty:
- Oxygen Sensor O2 Bung 3" Clamp-On Style for all vehicles that utilize an Oxygen sensor$30.61Qty:
- Hooker Blackheart Oxygen Sensor O2 Bung 2.25" Clamp-On style$30.61Qty:
This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles and Racing Use Only Vehicles.
The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:
- 1965 and older U.S. manufactured California Certified vehicles
- 1967 and older U.S. manufactured Federally Certified vehicles
- 1967 and older Foreign manufactured vehicle
The following vehicles are considered Racing Use Only Vehicles:
- Racing Use Only Vehicles are vehicles that are used exclusively for competition and that are not registered and that may never be used on the street
WARNING: It is against the law to install this part on an Emissions Controlled Vehicle
The following vehicles are considered Emissions Controlled Vehicles:
- 1966 and newer U.S. manufactured California Certified vehicles
- 1968 and newer U.S. manufactured Federally Certified vehicles
- 1968 and newer Foreign manufactured vehicle
*Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages.
Some parts are not legal for use in California or other states with similar regulations.