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    New!

    Holley EFI Holley EFI Terminator X Stealth 4150 Throttle Body - Classic Gold 534-294

    Vendor: Holley EFI
    Part Number: 534-294
    Save $213
    Sale Price $1,699.95 Regular Price $1,912.95

    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.
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    Keep the traditional look of a carburator but have the improvements of Holley EFI with an externally mounted ECU with our 4150. This is a stand alone system used with Terminator X and Terminator X Max (not included, throttle body only). Improve your vehicle with onboard diagnostics, full control of ignition timing, input and output, and a wideband O2 sensor with fuel map self learning capabilities (not included, throttle body only). With this system, you'll have better idle quality, improved reliability, and overall better driveability.


    Holley EFI Holley EFI Terminator X Stealth 4150 Throttle Body - Classic Gold 534-294


    Specifications:

    40 Yes
    Brand Holley EFI
    Category Air and Fuel Delivery
    Color Gold
    Emission Code 3
    Finish Gold
    Flange Size 4150
    Flange Style Squarebore
    906 Yes
    894 EFI
    3390 Performance
    909 No
    Injector Size 100 lb/hr @ 58.5 PSI
    Max Horsepower Rating 650 Naturally Aspirated
    30 No
    Product Type Throttle Body
    910 Classic Gold
    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 Gold
    Emission Code 3
    Finish Gold
    Flange Size 4150
    Flange Style Squarebore
    906 Yes
    894 EFI
    3390 Performance
    909 No
    Injector Size 100 lb/hr @ 58.5 PSI
    Max Horsepower Rating 650 Naturally Aspirated
    30 No
    Product Type Throttle Body
    910 Classic Gold
    911 Cast Aluminum
    914 No
    Throttle Bore 1.75 in.
    918 Yes
    Warning California Proposition 65
    Description_INV TERMX STEALTH 4150 4INJ GOLD
    Description_ASC Verify your kickdown provisions for complete installation.
    Description_DES Holley EFI Terminator X Stealth 4150 Throttle Body - Classic Gold
    Description_EXT 4 fuel injectors
    Description_MKT Keep the traditional look of a carburator but have the improvements of Holley EFI with an externally mounted ECU with our 4150. This is a stand alone system used with Terminator X and Terminator X Max (not included, throttle body only). Improve your vehicle with onboard diagnostics, full control of ignition timing, input and output, and a wideband O2 sensor with fuel map self learning capabilities (not included, throttle body only). With this system, you'll have better idle quality, improved reliability, and overall better driveability.
    Description_FAB 4 fuel injectors support up to 650 HP naturally aspirated or 600 HP with forced induction
    Description_FAB Kickdown provisions for GM TH350 and 400, along with 200R4 and 700R4 transmissions
    Description_FAB Kickdown provisions for Ford C4 and C6
    Description_FAB Kickdown provisions for Mopar 727 and 904 sold separately
    Description_INV TERMX STEALTH 4150 4INJ GOLD
    Description_ASC Verify your kickdown provisions for complete installation.
    Description_DES Holley EFI Terminator X Stealth 4150 Throttle Body - Classic Gold
    Description_EXT 4 fuel injectors
    Description_MKT Keep the traditional look of a carburator but have the improvements of Holley EFI with an externally mounted ECU with our 4150. This is a stand alone system used with Terminator X and Terminator X Max (not included, throttle body only). Improve your vehicle with onboard diagnostics, full control of ignition timing, input and output, and a wideband O2 sensor with fuel map self learning capabilities (not included, throttle body only). With this system, you'll have better idle quality, improved reliability, and overall better driveability.
    Description_FAB 4 fuel injectors support up to 650 HP naturally aspirated or 600 HP with forced induction
    Description_FAB Kickdown provisions for GM TH350 and 400, along with 200R4 and 700R4 transmissions
    Description_FAB Kickdown provisions for Ford C4 and C6
    Description_FAB Kickdown provisions for Mopar 727 and 904 sold separately


    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.

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