Holley Hi-Ram Intake Manifold GM LS3/L92 W/Terminator X Stealth EFI Kit 4150 2X4

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  • Hi-Ram Intake Manifold
  • Bolt-On EFI System
  • Self-Tuning ECU
  • Your Choice of Finish
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Holley GM LS3/L92 Hi-Ram Intake Manifold with a Terminator X Stealth 4150 2X4 EFI Kit.

Transform your GM LS3 or L92 engine with a Holley GM LS3/L92 Hi-Ram Intake Manifold and Terminator X Stealth 4150 2X4 EFI Kit! These upgrades are perfect for high-performance applications built to dominate the track. They’re made in the USA and come in three finish options: natural and shiny, natural and black, or natural and gold.

The Hi-Ram intake manifold is a cost-effective alternative to fabricated sheet metal. When combined with high-flow LS3/L92-style cylinder heads, this intake offers unbelievable power potential for naturally aspirated or forced induction engines in the 6.0 to 7.0+ liter range (with max power at 7000-8000+RPM). The 6-1/2” runner length and tapered 4.25" to 2.77" cross-section integrate smoothly into a wide range of engine configurations, ensuring a perfect fit on your classic car or truck. This intake’s plenum top uses a 2x4150 square bore mounting configuration and features a lightweight yet durable cast aluminum construction for reliable performance. This intake is only available in a natural finish.

Hi-Ram Intake Features:
- Runner Length – 6.50”, As-Cast Runner Cross-Sectional Area – Tapered 4.25" to 2.77"
- Plenum Top Gasket Type – 3/32” Round O-ring Cord
- Mounting Flange Gasket Type – Standard LS3 Molded O-Ring
- Port Size – 2.49” Height x 1.21” Wide
- Base Plenum Top Mounting Flange Height – 8.42” to the lifter valley cover flange on engine block.
- Height (Carbureted 2x4V Top Mount) – 11.08” to the lifter valley cover flange on engine block.
- 2 X 4150 square bore mounting configuration (sideways or inline mounting)

The Holley Terminator Stealth X EFI system is a bolt-on replacement for your 2x4 4150 flange carburetor. It features eight 100 Lb/Hr injectors that can support up to 1500 HP on Naturally Aspirated applications or 1250 HP on Forced Induction applications. The Terminator Stealth X ECU is incredibly easy to set up, requiring you to only answer a few questions on the hand-held device before the calibration wizard takes over. From this point, it uses fuel map self-learning and ignition timing control to continuously self-tune for the best possible performance. In addition to making the most of your engine power and fuel, this ECU also improves idle stability, drivability, and wide-open throttle horsepower. Best of all, this EFI kit is available in a shiny, black, or gold finish!

EFI Kit Features:
- Bolt-on 2x4 4150 flange carburetor replacement
- Supports up to 1500 HP naturally aspirated or 1250 HP forced induction applications 
- Includes eight 100 LB/HR injectors
- Built-in 1bar MAP sensor 
- Integrated ignition timing control
- Real-time fuel map self-learning
- High-resolution full-color touchscreen device for setup, tuning, and gauge displays
- Simple-to-use calibration wizard 
- Genuine Bosch LUU 4.9 wideband oxygen sensor
- OEM-style TPS/IAC and fuel pressure regulator offer years of dependable service
- Included weld-in O2 sensor bung for exhaust ensures a leak-free oxygen sensor installation
- Plug-and-play with Holley EFI accessories, such as the 12.3” and 6.86” pro dash; CAN EGT; and digital analog style EFI gauges
- Comes in 3 finishes: shiny, black, and gold

Please Note: External fuel pressure regulator required, set to a base pressure of 58.5 psi, such as Holley part # 12-886.

California Residents: Proposition 65 Warning

Related Categories: Mustang Parts, Mustang Electrical & Wiring, Mustang EFI Engine & Injector Harnesses, Mustang Engine, Mustang Intake Manifolds

Only for use on pre-pollution controlled vehicles: This product can be used on vehicles that were manufactured before emissions control regulations were imposed. Pre-pollution vehicles are defined as:

  • 1965 and older U.S. manufactured California certified vehicles
  • 1967 and older U.S. manufactured federally certified vehicles

Vehicle Fitment

This product will fit the following Bronco years:

This product will fit the following C/K years:

  • 1988,
  • 1989,
  • 1990,
  • 1991,
  • 1992,
  • 1993,
  • 1994,
  • 1995,
  • 1996,
  • 1997,
  • 1998,

This product will fit the following C10 years:

This product will fit the following F-100 years:

  • 1948,
  • 1949,
  • 1950,
  • 1951,
  • 1952,
  • 1953,
  • 1954,
  • 1955,
  • 1956,
  • 1957,
  • 1958,
  • 1959,
  • 1960,
  • 1961,
  • 1962,
  • 1963,
  • 1964,
  • 1965,
  • 1966,
  • 1967,
  • 1968,
  • 1969,
  • 1970,
  • 1971,
  • 1972,
  • 1973,
  • 1974,
  • 1975,
  • 1976,
  • 1977,
  • 1978,
  • 1979,

This product will fit the following Mustang years:

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