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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
4.3 ★★★★★
Based on 11 reviews
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Product Reviews
★★★★★ 5
A Noticeable Upgrade from Regular Soaps
Size: 3.5 Ounce (Pack of 6)
Leaves skin soft, smooth, and refreshed without dryness
I’ve tried plenty of big retail soaps over the years, but this one stands out right away. The bar lathers nicely and leaves my skin feeling noticeably smoother and never dry, which is a huge improvement compared to what I used before. The scent is clean and subtle, not overpowering, so it works well for everyday use. I did expect the bar to be a little bigger, but it has held up better than I thought it would, making it worth the price—especially since I picked it up during a sale. Overall, this is a quality soap that feels more refined than the usual options, and I’ll definitely keep it in my rotation.
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Reviewed in the United States on September 7, 2025
★★★★★ 5
Soap
Size: 3.5 Ounce (Pack of 6)
My son and I really enjoy this soap. Not an overpowering smell and it lasts a decent amount of time...unlike other soaps
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Reviewed in the United States on May 8, 2026
★★★★★ 4
Works well
Size: 3.5 Ounce (Pack of 6)
I just wanted to update my review as I have had more time to review the product. The presentation is well done and in a nice looking box. Initially it did not smell the best in the box but when it gets wet it has a mild smell that is pleasant. It has a great lather, the exfoliating beads feel good, and it does work well. Great product but the smell is mild.
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Reviewed in the United States on December 26, 2023
★★★★★ 5
Masculine Scent
Size: 3.5 Ounce (Pack of 6)
Purchased to try something new. Very good product, smells nice and cleans well. However the scent did not last as long as hoped during the day. On the other hand, if you use it just before a date, it will be just right.
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Reviewed in the United States on November 2, 2024
★★★★★ 3
Really wanted to like this soap
Size: 3.5 Ounce (Pack of 6)
I waited until I went through 5 of the 6 bars of soap in this pack. It was very well put together with each bar individually wrapped with a cellophane and a nice paper wrapper. The scent upon opening the box was pleasant. Sniffing each wrapped bar to get an idea of how they smelled left me a little skeptical. So here’s the pros and cons:
PROS
Small bars but they last a long time.
4 of the 6 are scrubbing bars, meaning they have exfoliating bits of walnut shells in them, which for me, blue collar worker, I really liked.
Packaging is nice.
CONS
THEY ALL SMELL THE SAME!
I don’t know why this is, but I can only attribute it to the packaging and them being so close together. Pretty disappointing.
The walnut bits accumulate in the bottom of the tub and need to be rinsed down the drain.
All in all, decent soap without any noticeable differences in smell. Good enough for one purchase, but I’ll be buying a different brand next time.
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Reviewed in the United States on April 25, 2026