Holley EFI Terminator X Stealth 4150 Throttle Body - Black
Type: Throttle Body
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.
Features:
- 4 fuel injectors support up to 650 HP naturally aspirated or 600 HP with forced induction
- Kickdown provisions for GM TH350 and 400, along with 200R4 and 700R4 transmissions
- Kickdown provisions for Ford C4 and C6
- Kickdown provisions for Mopar 727 and 904 sold separately
Specs:
- Adjustable: Yes
- Brand: Holley EFI
- Category: Air and Fuel Delivery
- Color: Black
- Emission Code: 3
- Finish: Black
- Flange Size: 4150
- Flange Style: Squarebore
- Fuel Injectors Included: Yes
- Fuel System Type: EFI
- Grade Type: Performance
- Idle Air Control Motor Included: No
- Injector Size: 100 lb/hr @ 58.5 PSI
- Max Horsepower Rating: 650 Naturally Aspirated
- Mounting Hardware Included: No
- Product Type: Throttle Body
- Throttle Body Finish: Black
- Throttle Body Material: Cast Aluminum
- Throttle Body Spacer Included: No
- Throttle Bore: 1.75 in.
- Throttle Position Sensor Included: Yes
Tech Resources:
Verify your kickdown provisions for complete installation.
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Important Notices
- Off‑Road Use Only
Products sold by JS Speed are intended for off‑road use and may be illegal on public roads where emissions or pollution‑control laws apply. - Check Local Laws
Before purchasing or installing, verify all applicable local, state/provincial, and federal regulations to ensure the modification is legal in your area. - Professional Installation Recommended
These parts should be installed by qualified professional mechanics. Improper installation can cause performance issues or vehicle damage. Unless a product page explicitly states otherwise, installation instructions are not included. Components are designed for users with solid mechanical knowledge, and minor adjustments or modifications may be required for proper fitment. Returns or refunds cannot be accepted due to difficulty completing an installation or the absence of instructions. - Warranty Impact
Use of these parts may void your vehicle’s factory warranty. Confirm with your vehicle manufacturer before purchase and installation. - Limitation of Liability
JS Speed is not responsible for damage, failures, or issues arising from the use or installation of these products. - Product Images
Images are for illustration only and may differ from the actual product due to manufacturer updates or improvements. - No Performance Guarantees
While these products are designed to enhance performance, JS Speed does not guarantee specific performance results.
