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Ships within 48 hours · Estimated delivery Sep 23 - Sep 28
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Holley EFI Terminator X Stealth GM LS 4150 - Gold 550-106258X Crank 4 Injectors 650 HP Features: All of the wiring exits below the fuel injector bowls, for a completely stealth installation Air entry machined to fit most stock style air cleaners with air cleaner locator provisions External fuel pressure regulator required, set to a base pressure of 58. 5 PSI, such as 12 886 Integrated ignition timing control ?"Plug and play with factory LS coil sub harness and OEM LS coils ?" no external boxes modules needed
58X Crank - 4 Injectors - 650 HP
Features:
- All of the wiring exits below the fuel injector bowls, for a completely stealth installation
- Air entry machined to fit most stock style air cleaners with air cleaner locator provisions
- External fuel pressure regulator required, set to a base pressure of 58.5 PSI, such as 12-886
- Integrated ignition timing control ?"Plug and play with factory LS coil sub harness and OEM LS coils ?" no external boxes/modules needed to run Coil Near Plug
- High Resolution Full Color Touchscreen for Initial Setup, Tuning, and Gauge Displays
- 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!
- Self-tuning ECU means you don’t have to be a computer/tuning wiz to have EFI!
- Self-tuning ECU means you don?™t have to be a computer/tuning wiz to have EFI!
- 4 Inputs ?" 12v, Ground, 5v, and Frequency, for things such as additional pressure sensors, or activation triggers for nitrous activation, or a trans brake (Fuel and Oil Pressure Inputs are pre-terminated)
- 4 Outputs ?" Ground, PWM - , for accessories such as; fans, boost control, nitrous control, IAC Kit, and More
- The included Genuine Bosch LSU 4.9 Wideband Oxygen Sensor provides real-time Fuel Map Learn!
- OEM Style TPS/IAC, for years of dependable service
- Available in 3 finishes: Shiny, Black and Gold
- Compatible with Holley EFI digital dashes, gauges and fuel system accessories
Specs:
| Accelerometer Support | Yes |
|---|---|
| Boost Control | Yes |
| Brand | Holley EFI |
| CAN-BUS Support | Yes |
| CFM | 950 |
| Coil Per Cylinder Ignition Support | Yes |
| Color | Gold |
| Crank Reluctor | 58x |
| Datalogging Support | Yes |
| Distributor Included | No |
| Dry Nitrous Control | Yes |
| e85 Support | No |
| EGT Support | Yes |
| Emission Code | 3 |
| Finish | Gold |
| Flange Size | 4150 |
| Flange Style | Squarebore |
| 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 |
| Grade Type | Performance |
| Handheld Included | Yes |
| Ignition Timing Control | Yes |
| Ignition Type | GM LS 58x |
| Individual Cylinder Fuel Corrections | No |
| Injector Size | 100 lb/hr @ 58.5 PSI |
| Inlet / Outlet Size | 6AN |
| Intake Manifold Included | No |
| Knock Retard Support | Yes |
| MAP Sensor | 1bar |
| Max Horsepower Rating | 650 |
| Multi-Stage Nitrous Control | Yes |
| Product Type | EFI System |
| Progressive Nitrous Control | Yes |
| Sale Category | Air and Fuel Delivery |
| Self-Tuning | Yes |
| Terminator LS Options | Fuel, Spark |
| Throttle Bore | 1.75 in. |
| Throttle Position Sensor Included | Yes |
| Transmission | N/A |
| User-Tuneable | Yes |
| Warning | California Proposition 65 |
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
4.5 ★★★★★
Based on 10 reviews
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Product Reviews
★★★★★ 5
Cool shirt
Size: XX-Large, Color: Black
Great shirts really comfortable
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 14, 2026
★★★★★ 1
Not a great shirt
Size: Large, Color: Pink
I didn’t like the material, and it didn’t fit. It was listed as slim fit but was definitely not.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 13, 2026
★★★★★ 5
Sway Alert!! This is a beautiful suite!
Color: Beige, Size: 5, Color: Beige, Size: 5
This suit fit great my son loved it. The quality is good. My son is five about 40 inches tall around 40 pounds. He’s very slim but the length was great. The suit jacket fit well. The pants waist were a little big, but the adjustable strap helped with that, but the fit overall was great . I would purchase a suit again in a different color.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 12, 2026
★★★★★ 5
Great Looking Suit with Lightweight Material
Color: Light Grey, Size: 7
I got this for a beach wedding and it worked out really well. It looked nice without feeling too formal, which was perfect for the setting.
The material is linen and it feels lightweight and breathable. It kept my kid comfortable in the heat and didn’t feel stiff or heavy like some dress suits do.
The appearance is sharp. The double breasted style makes it look more dressed up, but the linen material keeps it relaxed and appropriate for outdoor events.
The fit was true to size. It sat well without looking baggy or tight, and everything stayed in place throughout the event.
Quality feels good for the price. The fabric and stitching don’t feel cheap, and it held up well after a full day of wear.
Suitability is great for things like weddings, parties, or photos. It works especially well for warmer weather because of the material.
For value, I think it’s worth it. You’re getting a nice looking suit with comfortable material that actually works in real situations.
Overall, great fit, breathable material, and a clean look that works really well for events.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 28, 2026
★★★★★ 5
Very nice linen suit for boys. Well worth the piece
Color: Beige, Size: 12
This JPF Double Breasted Linen Suit for Boys is the cutest thing I've ever seen! I got itt for my 8 year old and he loves it! He tried it on at soon as we received it and wore it all evening. Lol. He looks so grown up! He's about 4'3", about 75lbs. I ordered a size 12 and it fits him the way I'd expect it to. A bit big but he has room to grow into it. It is a 2 piece suit, with pants and blazer only. It's a summer suit, it's meant to have a more laid back, casual style. It is so nice! The style and color are identical to the photo. I got the beige color, that's the color my kid picked. I do worry a bit about staining, considering an 8 year old boy will be wearing it, but hopefully any stains will be easy to remove. The quality is excellent and the price isn't bad either. I highly recommend this suit
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 18, 2026
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