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Description
Holley Lo-Ram Manifold Kit Dual Injector- Black - GM LS3/L92 300-683BKDual Injector Manifold and Fuel Rails Black Finish Features: Designed for GM LS Gen III and IV engines equipped with GM LS3 L92 cylinder heads Provides best performance for forced induction (supercharged or turbocharged) engine applications with peak power at 7000 8000 rpm, depending on the application Dual injector, separate passage, high volume fuel rails with mounting hardware, dual fuel capable, 8 AN o ring ports Low height to aid the packaging of
Dual Injector Manifold and Fuel Rails- Black Finish
Features:
- Designed for GM LS Gen III and IV engines equipped with GM LS3/L92 cylinder heads
- Provides best performance for forced induction (supercharged or turbocharged) engine applications with peak power at 7000-8000 rpm, depending on the application
- Dual-injector, separate-passage, high-volume fuel rails with mounting hardware, dual-fuel capable, 8 AN o-ring ports
- Low height to aid the packaging of a plenum mounted air-to-water intercooler in a top-feed configuration
- Available with both as-cast satin and black power-coat finishes
- High volume fuel rails for eight and sixteen injector configurations. Mounting hardware included with3/4-16 O-ring ports (8 AN)and mounting hardware included with 3/4-16 O-ring ports (8 AN)
Specs:
| Basic Operating RPM Range | 3500-8000 RPM |
|---|---|
| Brand | Holley EFI |
| Category Filter | Intake Manifolds |
| Clearance Category | Intake Manifolds |
| Color | Black |
| Construction | Cast |
| EGR Port | No |
| Emission Code | 3 |
| Engine | GM LS3/L92 |
| Finish | Black |
| Fuel System Type | EFI |
| Grade Type | Performance |
| Injector Quantity | Dual |
| Inlet Location | Top |
| Intake Port Gasket(s) Included | No |
| Manifold Type | Lo-Ram |
| Material | Aluminum |
| Nitrous Bung(s) Included | No |
| Plenum Finish | Black |
| Product Type | Intake Manifold Base |
| Recommended Use | Forced Induction |
| Removable Runners | No |
| RPM Power Band | 3500-8000 RPM |
| Single Or Dual Plane Type | Single Plane |
| Throttle Body Bore Diameter | 105 MM |
| Throttle Body Included | No |
| Warning | California Proposition 65 |
| Warranty | Limited 90 Day |
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
4.8 ★★★★★
Based on 12 reviews
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Product Reviews
★★★★★ 5
Enjoyable to drink
Size: 2.32 Pound (Pack of 1), Style: New
Goood texture
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
★★★★★ 5
Lost Eight Pounds!!!
Size: 2.32 Pound (Pack of 1), Style: New
I mix two spoonfuls in a glass of orange juice every morning. In the past month I've lost eight pounds doing nothing different. Great product!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
★★★★★ 5
Won’t go a day without it
Size: 2.32 Pound (Pack of 1), Style: New, Size: 2.32 Pound (Pack of 1), Style: New
So much better than the sugar version which has SOOOO much sugar it gave me heartburn. Yes, the sugar version is tasty like Tang, but that sugar gave me indigestion. The aspartame version was disgusting. This Stevia is awesome. Because it doesn’t have tons of sugar, you only need 2 heaping teaspoons instead of 2 tablespoons of the regular. I think it’s delicious and also has natural coloring, the sugar version has artificial dyes. I drink it everyday and my GI tract has never been happier. Only one small issue, this size container (~14 oz) is narrow, so buy the bigger bottle (23 or 34?) so you can reach in to scoop it easily. I have zero bloating or gas and sometimes take it more than once per day. It supposedly decreases appetite if taken before meals. It expands in your gut! Perfect. Just don’t take it within 2 hours of oral meds/vitamins as it can supposedly decrease gut absorption. Enjoy the results!!
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Reviewed in the United States on July 3, 2025
★★★★★ 4
Lower Cholesterol and Better Digestion, Even if the Taste Takes Getting Used To
Size: 2.32 Pound (Pack of 1), Style: New
I started using this fiber supplement after my doctor recommended it to help manage my cholesterol. I like that it’s plant-based and sugar-free, and it’s easy to mix into water. After taking it regularly, I’ve noticed a positive impact on my digestion, and I’m hopeful it will help with my cholesterol in the long run. The only thing is that the taste and texture aren’t quite what I expected — it’s a bit like protein powder. Still, the health benefits make it worth continuing
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Reviewed in the United States on August 8, 2025
★★★★★ 5
Good taste
Size: 2.32 Pound (Pack of 1), Style: New
Tastes like tang. Take daily to reduce cholesterol.
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Reviewed in the United States on February 25, 2026
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