Skip to Product Info
    • 534-307_03.jpg
    • 534-307_01.jpg
    • 534-307_02.jpg
    • 534-307_04.jpg
    • 534-307_05.jpg
    • 534-307_06.jpg
    • 534-307_07.jpg
    • 534-307_08.jpg
    • 534-307_09.jpg
    • 534-307_10.jpg
    • 534-307_11.jpg
    • 534-307_12.jpg
    • 534-307_13.jpg

    Holley EFI Holley EFI Terminator X Stealth 4150 Secondary Throttle Body - Shiny 534-298

    Vendor: Holley EFI
    Part Number: 534-298
    Save $147
    Sale Price $1,171.95 Regular Price $1,318.95

    Currently out of stock.

    Not sure it fits your vehicle?
    Email sales@berryperformancesales.com with your year, make, model and engine, and we'll help you check fitment before you order.
    Fast Fulfillment: In-stock orders typically ship within 1 to 2 business days.
    Free Shipping on Orders Over $99 | Excludes freight shipments
    International Shipping Available: email sales@berryperformancesales.com for a quote.
    Payment & Security

    Secure, encrypted checkout. Card details go straight to the payment processor and are never stored by us.

    • Amazon
    • Amazon
    • American Express
    • Apple Pay
    • Diners Club
    • Discover
    • Google Pay
    • Mastercard
    • PayPal
    • Shop Pay
    • Venmo
    • Visa
    Share to:
    Replacement/Service secondary throttle body with injectors, intended to be used as a service component or when building a custom 4150 style 2x4 setup.


    Holley EFI Holley EFI Terminator X Stealth 4150 Secondary Throttle Body - Shiny 534-298


    Specifications:

    40 Yes
    Brand Holley EFI
    Category Air and Fuel Delivery
    Color Shiny
    Emission Code 3
    Finish Shiny
    Flange Size 4150
    Flange Style Squarebore
    906 Yes
    894 EFI
    3390 Performance
    909 No
    Ignition Type Universal
    Injector Size 100 lb/hr @ 58.5 PSI
    Max Horsepower Rating 650 Naturally Aspirated
    30 No
    part type Fuel Injection Throttle Body
    Product Type Throttle Body
    Sub Category Fuel Injection System and Related Components
    910 Polished
    911 Cast Aluminum
    914 No
    Throttle Bore 1.75 in.
    918 Yes
    Warning California Proposition 65
    40 Yes
    Brand Holley EFI
    Category Air and Fuel Delivery
    Color Shiny
    Emission Code 3
    Finish Shiny
    Flange Size 4150
    Flange Style Squarebore
    906 Yes
    894 EFI
    3390 Performance
    909 No
    Ignition Type Universal
    Injector Size 100 lb/hr @ 58.5 PSI
    Max Horsepower Rating 650 Naturally Aspirated
    30 No
    part type Fuel Injection Throttle Body
    Product Type Throttle Body
    Sub Category Fuel Injection System and Related Components
    910 Polished
    911 Cast Aluminum
    914 No
    Throttle Bore 1.75 in.
    918 Yes
    Warning California Proposition 65
    Description_INV TERMINATOR X STEALTH 4150 2X4 SEC POL
    Description_ASC Verify your kickdown provisions for complete installation.
    Description_DES Holley EFI Terminator X Stealth 4150 Secondary Throttle Body - Shiny
    Description_EXT 4 fuel injectors
    Description_MKT Replacement/Service secondary throttle body with injectors, intended to be used as a service component or when building a custom 4150 style 2x4 setup.
    Description_FAB Bolt on 2x4 4150 flange carburetor replacement
    Description_FAB Supports up to 1500 HP naturally aspirated or 1250 HP forced induction
    Description_FAB (8) 100 pound per hour fuel injectors
    Description_FAB Internal 1 Bar MAP sensor built into the Terminator X ECU
    Description_FAB External fuel pressure regulator required, set to a base pressure of 58.5 PSI, such as Holley part # 12-886
    Description_FAB Integrated ignition timing control
    Description_FAB High Resolution Full Color Touchscreen for Initial Setup, Tuning, and Gauge Displays
    Description_FAB 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!
    Description_FAB Self-tuning ECU means you don’t have to be a computer/tuning wiz to have EFI!
    Description_FAB The included Genuine Bosch LSU 4.9 Wideband Oxygen Sensor provides real-time Fuel Map Learn!
    Description_FAB OEM Style TPS/IAC and Fuel Pressure regulator, for years of dependable service
    Description_FAB Included weld-in O2 sensor bung for the exhaust ensures a leak free oxygen sensor installation
    Description_FAB 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
    Description_INV TERMINATOR X STEALTH 4150 2X4 SEC POL
    Description_ASC Verify your kickdown provisions for complete installation.
    Description_DES Holley EFI Terminator X Stealth 4150 Secondary Throttle Body - Shiny
    Description_EXT 4 fuel injectors
    Description_MKT Replacement/Service secondary throttle body with injectors, intended to be used as a service component or when building a custom 4150 style 2x4 setup.
    Description_FAB Bolt on 2x4 4150 flange carburetor replacement
    Description_FAB Supports up to 1500 HP naturally aspirated or 1250 HP forced induction
    Description_FAB (8) 100 pound per hour fuel injectors
    Description_FAB Internal 1 Bar MAP sensor built into the Terminator X ECU
    Description_FAB External fuel pressure regulator required, set to a base pressure of 58.5 PSI, such as Holley part # 12-886
    Description_FAB Integrated ignition timing control
    Description_FAB High Resolution Full Color Touchscreen for Initial Setup, Tuning, and Gauge Displays
    Description_FAB 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!
    Description_FAB Self-tuning ECU means you don’t have to be a computer/tuning wiz to have EFI!
    Description_FAB The included Genuine Bosch LSU 4.9 Wideband Oxygen Sensor provides real-time Fuel Map Learn!
    Description_FAB OEM Style TPS/IAC and Fuel Pressure regulator, for years of dependable service
    Description_FAB Included weld-in O2 sensor bung for the exhaust ensures a leak free oxygen sensor installation
    Description_FAB 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


    Shipping Policy
    • Free shipping on orders over $99 (excludes freight shipments).
    • In-stock orders typically ship within 1 to 2 business days. Weekend and holiday orders are processed the next business day.
    • Orders ship from Defiance, Ohio and a nationwide network of warehouses and manufacturers.
    • Items showing an ETA are not in stock yet. ETAs come from the manufacturer and can change.
    • No P.O. Boxes. International orders need a shipping quote, so email us first.

    Read the full Shipping Policy

    Return Policy
    • 30-day return window from the ship date. Returns must be approved first; email sales@berryperformancesales.com with your order number.
    • Items must be unused, complete and in the original packaging.
    • A 20% restocking fee applies, and return shipping is paid by the buyer.
    • Not returnable: installed or modified parts, opened or used programmers and tuners, custom orders, Open Box, and Clearance or Final Sale items.
    • Damaged, defective or incorrect items must be reported within 48 hours of delivery with photos.

    Read the full Return Policy

    Disclaimer

    All products are sold for off-road use only unless otherwise specified. Buyer assumes all responsibility for installation and operation. Seller is not liable for any incidental, indirect, or consequential damages — including engine failure, labor costs, or vehicle downtime — resulting from the use of any product sold.

    By making a purchase from Berry Performance Sales, you acknowledge and agree to abide by the terms and conditions of these Policies.

    For any questions or concerns, please contact us — we’re always happy to help.

    Recently Viewed