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Description
Holley EFI Terminator X Stealth 4150 Secondary Throttle Body - Gold 534-300Secondary Service Throttle Body 4 Injectors Features: Bolt on 2x4 4150 Flange Carburetor Replacement Supports up to 1500 HP Naturally Aspirated or 1250 HP Forced Induction with Eight 100 Lb Hr Injectors Internal 1bar MAP sensor, built into the Terminator X ECU External fuel pressure regulator required, set to a base pressure of 58. 5 PSI, such as Holley part # 12 886 Integrated ignition timing control High Resolution Full Color Touchscreen for Initial
Secondary Service Throttle Body - 4 Injectors
Features:
- Bolt on 2x4 4150 Flange Carburetor Replacement
- Supports up to 1500 HP Naturally Aspirated or 1250 HP Forced Induction with Eight 100 Lb/Hr Injectors
- Internal 1bar MAP sensor, built into the Terminator X ECU
- External fuel pressure regulator required, set to a base pressure of 58.5 PSI, such as Holley part # 12-886
- Integrated ignition timing control
- 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!
- The included Genuine Bosch LSU 4.9 Wideband Oxygen Sensor provides real-time Fuel Map Learn!
- OEM Style TPS/IAC and Fuel Pressure regulator, for years of dependable service
- Included weld-in O2 sensor bung for the exhaust ensures a leak free oxygen sensor installation
- 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
- Available in 3 finishes: Shiny, Black, and Gold
Specs:
| Adjustable | Yes |
|---|---|
| Brand | Holley EFI |
| Color | Gold |
| Emission Code | 3 |
| Finish | Gold |
| Flange Size | 4150 |
| Flange Style | Squarebore |
| Fuel Injectors Included | Yes |
| Fuel System Type | EFI |
| Grade Type | Performance |
| Idle Air Control Motor Included | No |
| Ignition Type | Universal |
| 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 | Classic Gold |
| Throttle Body Material | Cast Aluminum |
| Throttle Body Spacer Included | No |
| Throttle Bore | 1.75 in. |
| Throttle Position Sensor Included | Yes |
| Warning | California Proposition 65 |
Application:
| Year | Make | Model | Submodel |
|---|---|---|---|
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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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
4.6 ★★★★★
Based on 7 reviews
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Product Reviews
★★★★★ 3
Great YA Thriller
Format: Audiobook
I thought this book was well written and fast paced. Everything you want in a good thriller. It was written exactly like a dramatic reality show and it kept you guessing until the end. It was a quick fun read if you are in the mood for a reality show that has the feeling of clue and and escape room all in one.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 2, 2026
★★★★★ 4
Exciting YA adventure
Format: Hardcover
📚 Do you find yourself shouting answers at game shows? Have you ever braved an escape room? Or maybe you’re just a sucker for a book with stenciled edges? If you answered "yes" to any of the above, I invite you to step into this original YA murder mystery.
The plot follows a team of teenage contestants navigating an escape-room-themed reality show through, puzzles, sabotage, betrayal, and... murder.
💭 I showed up for the pretty book cover, but stayed for the cleverness of the plot. It was suspenseful, entertaining, and very educational! I think adults and teens alike will get a kick out of the riddles woven throughout the story.
The characters were such a highlight for me. Watching four complete strangers transform into a close-knit team over the course of the season was so fun. Friendship, loyalty, and trust are the heart of the book, but there’s also plenty of romance, crime, and amateur sleuthing. I was hoping for a slightly different direction for the finale, but it was still an unexpected, action-packed ending.
⚖️ All in all, the story inside was just as good as the "pretty book" aesthetic on the outside. This was an exciting, fresh YA mystery. 4/5 ⭐ from me!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 11, 2026
★★★★★ 5
Nerdy Mystery
Format: Hardcover
Such a fun, game-solving, while murder-mystery-solving, good time! I think Tamara Moss' crime thriller influence really shines with Marissa's collaboration!b while i got some of the puzzles, the whodunnit twist was a surprise! A good time that should be far reaching beyond just "YA"
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 14, 2026
★★★★★ 5
Escape room
Format: Hardcover
Once I started reading I couldn’t put it down!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
★★★★★ 4
Rooting for the Underdogs
Format: Hardcover
The Escape Game pulled me in with its strong cast of characters and the way their relationships unfolded under pressure. Marissa Meyer does a great job creating characters you want to root for, and that emotional investment made the story shine for me.
The pacing started a little slower than I expected, and it took me some time to fully settle into the world and the stakes. But once the story found its rhythm? I was hooked. The second half absolutely flew by—I finished it in about two hours because I had to know what happened next.
The tension builds beautifully, the twists land well, and that ending? Such a strong cliffhanger. Now I’m already counting down until the sequel because I need answers. If you can hang in through the slower start, the payoff is definitely worth it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2026
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