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USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 7 - Jul 12
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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
4.2 ★★★★★
Based on 2322 reviews
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Product Reviews
★★★★★ 5
Best fluffy but firm pillows
Size: King(Pack of 2), Size: King(Pack of 2)
These pillows are worth every penny! They started off pretty flat but after three days they plumped up well. In addition to them being plump, they are also firm. Exactly what I was looking for. You can shake up the internal stuffing if you want them softer too. They were a bit pricey but I’m going to repurchase and replace all my home pillows with these. I do sleep hot and the cooling side is perfect to lay on. Kept me cool and comfortable. I haven’t had any neck or back pain after switching to these pillows too. Absolutely recommend these for your home. The photo shows how full the pillows are. I have four pillows in the picture plus two smaller other brands. These are definitely fluffier.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 8, 2026
★★★★★ 5
Great Quality
Size: King (Pack of 2)
Great quality and definitely worth the money. The cooling effect actually works with the pillow. Extremely comfortable, not too squishy and not too firm. To me, it feels very supportive.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 8, 2026
★★★★★ 5
Welcome, weary traveler, to the world of OSBED Shredded Memory Foam Pillows
Size: King (Pack of 2)
Welcome, weary traveler, to the world of OSBED Shredded Memory Foam Pillows - where firmness meets flexibility in a delightful pillow dance of comfort and support!
Picture this: a pillow as firm as a handshake from your grandma, yet as adaptable as a chameleon at a color-changing convention. With the magic of removable foam stuffing, you can sculpt these pillows to be as soft and huggable as a teddy bear, ensuring a customized snooze experience every night.
The pillow cover? Ah, it's like the velvet ropes of the sleep world - luxurious, durable, and ready to cradle your head in style. It's the kind of cover that whispers "sweet dreams" as you drift off into slumberland.
But wait, there's more! These pillows are cooler than the other side of your pillow, thanks to their cooling properties that rival a polar bear's favorite ice bath. Say goodbye to sweaty nights and hello to a refreshing sleep oasis.
And the best part? These pillows won't cost you an arm and a leg. At a decent price, they offer a luxurious feel without the wallet-induced panic attacks. Plus, they're as shape-retentive as a yoga master holding a downward dog pose - no lumps, no bumps, just consistent comfort all night long.
In a world filled with pillow pretenders, the OSBED Shredded Memory Foam Pillows stand tall as the champions of coziness, the sultans of support, and the emperors of easy adjustment. So, if you're seeking a blend of firmness, versatility, quality, coolness, affordability, and shape retention in your sleep companion, look no further than these pillows. Your neck and shoulders will thank you, and your dreams will be sweeter than ever before.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 3, 2024
★★★★★ 5
Cool memory foam pillows !
Size: Queen (Pack of 2), Size: Queen (Pack of 2)
Very fluffy! Very cool! Very comfortable !
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 10, 2026
★★★★★ 4
Very comfortable, luxurious, and affordable.
Size: Queen (Pack of 2)
Great pillow. Feels soft enough for comfort while being cool and cozy. There could be more filling to make it slightly more firm but otherwise a great pillow.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2026
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