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Description
Holley EFI Terminator X Stealth 2x4 4500 Kit - Shiny 550-10808 Injectors 800 1500 HP Features: Bolt on 4500 Flange Carburetor Replacement for 2x4 intake manifolds 2. 125" Throttle Plates, Flow 1440 CFM each for large cubic inch engines Timing Control support integrated within the ECU using supporting components (distributor, ignition box, or crank trigger) Self tuning ECU means you dont have to be a computer tuning wiz to have EFI! Plug and play with Holley EFI Accessories, such as the 12. 3" and 6. 86" Pro
8 Injectors - 800-1500 HP
Features:
- Bolt on 4500 Flange Carburetor Replacement for 2x4 intake manifolds
- 2.125" Throttle Plates, Flow 1440 CFM each for large cubic inch engines
- Timing Control support integrated within the ECU using supporting components (distributor, ignition box, or crank trigger)
- Self-tuning ECU means you don’t have to be a computer/tuning wiz to have EFI!
- 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
- 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!
- The included Genuine Bosch LSU 4.9 Wideband Oxygen Sensor provides real-time Fuel Map Learn!
- Supports up to 1500 HP Naturally Aspirated or 1250 HP Forced Induction with Eight 100 Lb/Hr Injectors
- Gen 3 Ultra Dominator Style 4 Bolt Air Cleaner Flange offering a variety of air cleaner options
- Each throttle body contains 4x 100lb/hr fuel injectors
- Universal engine harness allows you to easily install the Terminator X 2x4 4500 system on a wide variety of engine combinations
- High Resolution Full Color Touchscreen for Initial Setup, Tuning, and Gauge Displays
- Available in 2 finishes, Shiny and Black
- External fuel pressure regulator required, such as 12-848
- Included weld-in O2 sensor bung for the exhaust ensures a leak free oxygen sensor installation
- Throttle Linkage not included
Specs:
| Accelerometer Support | Yes |
|---|---|
| Boost Control | Yes |
| Brand | Holley EFI |
| CAN-BUS Support | Yes |
| CFM | 2880 |
| Coast Guard Approved | No |
| Coil Per Cylinder Ignition Support | Yes |
| Color | Shiny |
| Datalogging Support | Yes |
| Distributor Included | No |
| Dry Nitrous Control | Yes |
| e85 Support | No |
| EGT Support | Yes |
| Emission Code | 3 |
| Finish | Shiny |
| Flange Size | 4500 |
| Flange Style | Dominator |
| Forced Induction HP@60PSI | 1250 |
| Forced Induction Support | Yes |
| Fuel Filter Included | No |
| Fuel Hose Included | No |
| Fuel Injectors Included | Yes |
| Fuel Pressure | 58.5 PSI |
| Fuel Pressure Regulator Included | No |
| Fuel Pump Included | No |
| Fuel System | Not Included |
| Fuel System Type | Not Included |
| Grade Type | Performance |
| Handheld Included | Yes |
| Height | 3.85" |
| Horsepower Rating (HP) | 1500 |
| Ignition Timing Control | Yes |
| Ignition Type | Universal |
| Individual Cylinder Fuel Corrections | No |
| Injector Size | 100 lb/hr @ 58.5 PSI |
| Inlet / Outlet Size | 8AN |
| Intake Manifold Included | No |
| Knock Retard Support | Yes |
| MAP Sensor | 1bar |
| Max Horsepower Rating | 1500+ |
| Multi-Stage Nitrous Control | Yes |
| Naturally Aspirated HP@60PSI | 1500 |
| PDM | No |
| Power Distribution Module | No |
| Product Type | EFI System |
| Progressive Nitrous Control | Yes |
| Sale Category | Air and Fuel Delivery |
| Self-Tuning | Yes |
| Terminator LS Options | Fuel, Spark |
| Throttle Bore | 2.125 in. |
| Throttle Position Sensor Included | Yes |
| Traction Control Support | Yes |
| Transmission | N/A |
| User-Tuneable | Yes |
| Warning | California Proposition 65 |
| Wet Nitrous Control | Yes |
Application:
| Year | Make | Model | Submodel |
|---|---|---|---|
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 6 reviews
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Product Reviews
★★★★★ 5
Excellent Warranty Coverage – Fast, Fair, and Hassle-Free
I purchased the ASURION 3-Year Portable Electronic Accident Protection Plan ($500–$599.99) for an Android 13 8.8” touchscreen stereo installed in my BMW (CCC system). After about two years of normal use, the Android stereo stopped working completely.
I filed a claim through Asurion’s website, and the process was straightforward. Initially, Asurion asked me to remove the unit and prepare it for return, advising that they would email me a prepaid shipping label. I de-installed the stereo from my car and packed it up as instructed.
After two days passed without receiving the shipping label, I was about to follow up—when I received an email notifying me that Asurion had issued a full refund of $459.00. I did not have to ship the unit back.
That level of service exceeded my expectations. The claim was handled quickly, communication was clear, and the resolution was fair and hassle-free.
I purchase an Asurion protection plan with every high-dollar item I buy on Amazon. I’ve had to file a three claims over the years, and each time the experience has reinforced that this coverage is well worth the cost. When something fails outside the manufacturer’s warranty, it’s a relief knowing Asurion stands behind the product.
Highly recommended for expensive electronics.
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Reviewed in the United States on January 3, 2026
★★★★★ 5
PROTECTION WITH ABSOLUTE EMPATHY & RESPECT
Had an issue with a product I purchased over a year ago along with an Asurion protection plan. Thank God I chose this extended plan. I was waiting for a return ticket you get it repaired and Asurion sent me a full refund. I am so grateful for Asurion and I encourage everyone to get these plans and get the added protection on products NOT made as they once were. We as buyers are terribly taken advantage of with the garbage sent to us that we pay very very high costs of. Asurion has NEVER failed me and the customer service reps are extraordinary and kind and very very respectful.
Thank you to you all at Asurion,
Johnny A.
Cheers...
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Reviewed in the United States on December 25, 2025
★★★★★ 5
Works
works
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Reviewed in the United States on April 20, 2026
★★★★★ 5
Great Warranty company ! Easy to place claim 👍👍👍
This has been a great warranty company for my music needs ! Fast repairs ! and easy claims no jumping and red tape crap. 👍👍👍👍
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 13, 2025
★★★★★ 1
Dishonest Company
Purchased a Halowview BT7 RV Backup Camera along with the Haloview BTC 129 RV Side Cameras for a little over $550 in September of 2022. Due to a couple of poor reviews on this manufacturer I opted to purchase the 3-year $500-$599 extended warranty for both items at checkout. One of the side cameras went out and when I contacted Asurion they advised me that it was not covered under the warranty that I purchased. They said they will only cover one item at a time on an Amazon order and I was only covered for the $339.57 Backup camera on the order. I tried to point out that I would not purchase a warranty for $500-$599 on something valued at only $339.57. Asurion tried to blame it on Amazon and advised that their terms clearly state they only cover one item per invoice and that I had no warranty on the second item. When questioned about how a consumer is supposed to know this information, they advised that I should have read all their terms on their website. They refused to repair or replace the defective item even after confirming that the policy value was for $500-$599. Total waste of money!
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Reviewed in the United States on March 29, 2024