The Sniper Stealth 4150 EFI system from Holley features 4, 100LB/HR Fuel Injectors capable of supporting up to 650 HP naturally aspirated or 600 HP on forced induction applications. The Super Sniper Stealth 4150 EFI system from Holley features 4, 100LB/HR Fuel Injectors capable of supporting up to 650 HP naturally aspirated or 600 HP on forced induction applications. The 8 injector variation is capable of supporting up to 1250 HP on forced induction applications. The Sniper Stealth 4150 ECU is capable of complete ignition timing control, fuel self-learning, improving idle stability, drivability, 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?
Master Kits 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!
Features:
- 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!
- Air entry is machined to fit most stock style air cleaners with air cleaner locator provisions
- 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
- OEM style TPS/IAC and fuel pressure regulator, for years of dependable service
- 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
- 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
- Self-tuning ECU means you don’t have to be a computer/tuning wiz to have EFI!
- Timed spark part for vacuum advanced distributors located under the front fuel bowl, for easy access to the distributor.
- Integrated ignition timing control improves idle stability, drive-ability, and wide open throttle response
- All of the wiring exits below the rear fuel injector cover, for a completely stealth installation.
- Also available in Black, PN# 550-871 and Shiny, PN# 550-870 finishes
- Bolt on 4150 flange carburetor replacement fit’s a wide range of factory intake manifolds
- The included Genuine Bosch LSU 4.9 wideband oxygen sensor provides realtime fuel map learn!
Part # 534-247 is required to complete installation.
Installation Notes:
Part # 534-247 is required to complete installation.
