My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

Holley EFI 534-306 Terminator X Stealth 4500 Electronic Throttle Body - Black

Manufacturer

Picture for manufacturer Holley EFI

Part Number

534-306
9 reviews
Sale Price

$1,749.95

In Stock (10+)

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Holley EFI Terminator X Stealth 4500 Service Throttle Body delivers modern electronic fuel injection performance in a sleek black finish. Engineered to support up to 650 horsepower, this primary throttle body features integrated fuel injection with 4 injectors built directly into the unit, eliminating the need for separate fuel rails and providing a clean, stealthy appearance.

Key Features:

  • 4500-series flange pattern for compatibility with standard 4500 intake manifolds
  • Supports up to 650 horsepower
  • Integrated 4-injector design for simplified installation and clean aesthetics
  • Electronic throttle control for precise fuel and air management
  • Black anodized finish for a stealthy, OEM-quality appearance
  • Designed for use with Holley Terminator X engine management systems

This throttle body is ideal for engine swaps, street performance builds, and applications where a compact, integrated EFI solution is desired. The electronic servo motor provides smooth throttle response and integrates seamlessly with Holley's Terminator X ECU for complete engine control. The 4500 flange makes it a direct replacement for traditional carbureted setups while providing all the benefits of modern fuel injection technology.

Products specifications

Adjustable

Yes

Brand

Holley EFI

Category

Air and Fuel Delivery

Color

Black

Emission Code

3

Finish

Black

Flange Size

4500

Flange Style

Dominator

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

1500 Naturally Aspirated

Mounting Hardware Included

No

Part Type

Fuel Injection Throttle Body

Product Type

Throttle Body

Sub Category

Fuel Injection System and Related Components

Throttle Body Finish

Black

Throttle Body Material

Cast aluminum

Throttle Body Spacer Included

No

Throttle Bore

2.125 in.

Throttle Position Sensor Included

Yes

Warning

California Proposition 65

Very very fast delivery

Easy to shop.

So far so good

Easy to use website, good prices.

Quick and easy check out

All good

great price and good products. I was worried at first due to the price being so low. The product arrived and was 100 percent perfect. would buy from again A+++

My experience was awesome! Great price, quick & easy to follow delivery. Thank you.

Great company and fast shipping

Share icon
Return Policy
Returns are easy at Autoplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy