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Ships within 48 hours · Estimated delivery Jul 16 - Jul 21
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Description
Holley LS EFI Manifold - 2x4 Dual Plane LS3/L92 300-134Holley EFI 2x4 Dual Plane Intake Manifold. All GM LS Gen III or Gen IV engines equipped with LS3 L92 style rectangular port cylinder heads. Features: Power band from 1500 7000rpm Perfect for any street performance, muscle car or street rod enthusiast Cast aluminum construction Fits all GM LS Gen III or Gen IV engines equipped with LS3 L92 style rectangular port cylinder heads. Dual plane design for equal distribution and great mid range torque without
Holley EFI 2x4 Dual Plane Intake Manifold. All GM LS Gen III or Gen IV engines equipped with LS3/L92 style rectangular port cylinder heads.
Features:
- Power band from 1500-7000rpm
- Perfect for any street/performance, muscle car or street rod enthusiast
- Cast aluminum construction
- Fits all GM LS Gen III or Gen IV engines equipped with LS3/L92 style rectangular port cylinder heads.
- Dual plane design for equal distribution and great mid-range torque without comprimising top-end power
Specs:
| Basic Operating RPM Range | 1500-6500 RPM |
|---|---|
| Brand | Holley EFI |
| Carburetor Flange | Square/4150 |
| Category Filter | Intake Manifolds |
| Clearance Category | Air and Fuel Delivery |
| Color | Silver |
| Construction | Cast |
| Discount Percentage | 26-50% |
| EGR Port | No |
| Emission Code | 3 |
| Engine | GM LS3/L92 |
| Finish | Silver |
| Flange Style | 4150 Square Bore |
| Front Height | 4.73 inch |
| Front Maximum Height | 4.73 IN |
| Fuel System Type | EFI |
| Grade Type | Performance |
| Intake Port Gasket(s) Included | No |
| Manifold Type | Dual Plane |
| Material | Aluminum |
| Nitrous Bung(s) Included | No |
| Plenum Finish | Natural |
| Product Type | Intake Manifold |
| Rear Height | 5.80 inch |
| Rear Maximum Height | 5.8 IN |
| Removable Runners | No |
| RPM Power Band | 1500-6500 RPM |
| Sale Category | Air and Fuel Delivery |
| Single Or Dual Plane Type | Dual Plane |
| 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 5 reviews
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Product Reviews
★★★★★ 4
Nice briefs, worth the price
Size: Medium, Color: White
Briefs feel nice and I love the feel of cotton. Unfortunately they are missing a slot in the crotch that is usually present in these types of briefs.
Size is matching, soft to the touch.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
★★★★★ 5
Smooth
Size: Medium, Color: White
Fit is good. Material good
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
★★★★★ 5
My absolute favorite boxers ever
Size: XX-Large, Color: White
I'm not a man, but I'm a nonbinary person with a big bottom and have tried many quality boxer brands over the years (including the unisex brands). These are my absolute favorite brand of boxers. They're super comfortable. It's taking me a while because I just keep forgetting to stock up but they are replacing all of my other boxers.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 8, 2026
★★★★★ 3
Too large
Size: Medium, Color: Burgundy,lake Blue,dazzling Blue,bijou Blue
Nice but medium size was just too large. Suggest ordering one size smaller.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 20, 2026
★★★★★ 5
quality fabric and custom fit
Size: Large, Color: Cerise,orange,yellow,light Blue
excellent fit and fabric. This is my second order of this product
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 25, 2026
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