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Description
Holley Gen III Hemi Hi-Ram EFI Manifold 300-658Gen III Hemi EFI for use with 80 and 92mm Mopar Style Throttle Body As Cast Finish Fits 2009 up 5. 7L, 2005 2010 6. 1L, and 2011 up 6. 4L Features: Add Even More Power to the Gen III Hemi Engine with a Holley Hi Ram Intake Manifold Fits Gen III Hemi Engines w Large Intake Ports (1. 70? Height x 1. 88? Wide) ? fits 2009 up 5. 7L, 2005 2010 6. 1L, 2011 up 6. 4L) Cast Aluminum Construction w Natural Satin or Black Finish Runner Length and the Tapered
Gen III Hemi EFI for use with 80 and 92mm Mopar Style Throttle Body - As Cast Finish - Fits 2009-up 5.7L, 2005-2010 6.1L, and 2011-up 6.4L
Features:
- Add Even More Power to the Gen III Hemi Engine with a Holley Hi-Ram Intake Manifold
- Fits Gen III Hemi Engines w/ Large Intake Ports (1.70? Height x 1.88? Wide) ? fits 2009-up 5.7L, 2005-2010 6.1L, 2011-up 6.4L)
- Cast Aluminum Construction w/ Natural Satin or Black Finish
- Runner Length and the Tapered Cross Section Designed to Perform Well for a Wide Range of Engine Configurations
- Includes EFI Fuel Rails w/ -8 AN O-Ring Fittings & Large Passages to Accommodate High Fuel Flow and Dampen Pressure Pulsations in the Fuel System
- Works with Gen III Hemi Injectors & Bosch EV-1 Style Injectors
- O-Ring Seal to Head ? Large Retained O-rings Offer Superior Original Equipment (OE) Style Sealing & Are Easy to Replace
- Billet Oil Fill Cap ? Attractive Low Profile Design
- Positive Crankcase Ventilation (PVC) Ports w/ Adapter Fittings
- Overall Height: 11.59?
- Port for OE Style Manifold Absolute Pressure (MAP) Sensor (1 or 2 Bar)
- Cast-In Pads for Adding Nitrous Nozzles
- Manifold Base ? Available Separately for Custom Induction Systems
Specs:
| Basic Operating RPM Range | 1500-7000 RPM |
|---|---|
| Brand | Holley EFI |
| Color | Natural |
| Construction | Cast |
| EGR Port | No |
| Emission Code | 3 |
| Engine | GEN 3 HEMI |
| Finish | Satin |
| Flange Style | EFI |
| Front Height | 11.59 inch |
| Front Maximum Height | 11.59 IN |
| Fuel System Type | EFI |
| Grade Type | Performance |
| Injector Style Provision | EV-1, Gen III Hemi |
| Inlet Size | 95mm |
| Intake Port Gasket(s) Included | No |
| Manifold Type | Hi-Ram |
| Material | Aluminum |
| Nitrous Bung(s) Included | No |
| Plenum Finish | Natural |
| Port Size | 1.70" x 1.88" |
| Product Type | Intake Manifold |
| Rear Height | 10.35 inch |
| Rear Maximum Height | 10.35 IN |
| Removable Runners | No |
| RPM Power Band | 1500-7000 |
| RPM Power Band | 1500-7000 RPM |
| Runner Length | 6.65 inch |
| Sale Category | Air and Fuel Delivery |
| Single Or Dual Plane Type | Single Plane |
| Style | EFI |
| Throttle Body Bore Diameter | 95 MM |
| Throttle Body Included | No |
| Throttle Bore | 95mm |
| Type of Component | Intake Manifold |
| Vacuum Ports | (2) 3/8" NPT & (1) 1/4" NPT |
| Warning | California Proposition 65 |
| Warranty | Limited 90 Day |
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]
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4.6 ★★★★★
Based on 30 reviews
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Product Reviews
★★★★★ 5
They are comfortable!
Size: X-Large, Color: 2 Pack - Navy
I really like them. Pockets are very helpful and the size was right for me eventhough it was suggested a size bigger. Washed both already and noticed no shrinkage. Very comfortable and the length is just above the knees. Great for hanging about, in the gym or even a trip to the store.
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Reviewed in the United States on May 29, 2026
★★★★★ 5
BIG GIRLS LOVE 'EM TOO!
Size: 3X-Large, Color: 2 Pack - Black
I am a plus size gal. I was looking for some sleep shorts, but all the ones for us plus size gals were so short I may as well not have been wearing anything. I decided to look in men's shorts, and found these. They are nice and long, and the material is nice and soft. Also, unlike the women's shorts, the pockets in these are nice sized, big enough for my phone and then some. There's a drawstring, but the elastic in these is plenty to keep them up and riding at my waist, where they're supposed to be, without having to tie them. Typically I wear a 2X, but I purchased these in a 3X because I like a little more room in my PJ bottoms, and they fit great. The only thing I don't care for necessarily is that the elastic waistband is just a smidge scratchy, but after wearing them a while I found it didn't bother me. And the price is pretty good for two pairs - much cheaper than women's plus shorts.
I liked them enough that I came back and bought 4 more pair!
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Reviewed in the United States on April 2, 2026
★★★★★ 5
Comfortable and stretchy shorts with pockets!
Size: XX-Large, Color: 2 Pack - Black, Size: XX-Large, Color: 2 Pack - Black
For the most part, I've exclusively worn pants/jeans/slacks since my teens, I'm pretty sure that I've worn a skirt or dress on only 2 occasions in my life, and the skirt part was ankle - floor length those 2 times... Just to paint a picture for anyone reading my review knows how serious I am about hiding my almost reflectively white legs. At least up until I moved from the West Coast all the way to Oklahoma. Not only did I realize that I've taken California/PNW weather for granted all these years, but I quickly learned that I would now be wearing shorts every chance I get in this heat.
These shorts aren't made with a heavy type of fabric, they are stretchy and lightweight, and they even have pockets! My wardrobe color pallet is mostly just black or slightly different shades of black, so of course I got these shorts in black. Plus Fruit of the Loom has been a known name brand for as long as I can remember. These are a great value for the money, great quality so far, and the waist is easy/self-explanatory to adjust. I would like to point out that the tie string in the waist somehow got tangled with a stray string or tie string attached to something else in the same load of laundry I put the shorts in. I ended up having to cut off the part that was frayed from getting tangled, so I suggest that the tie around the waist of theses shorts should be knotted/tied together to hopefully avoid the tie string from fraying in the wash or something.
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Reviewed in the United States on August 22, 2025
★★★★★ 5
Best comfy clothes shorts !
Size: 4X-Large, Color: 2 Pack - Black
I needed some comfy shorts to wear around the house ! These are perfect!! Draw string waist band , legs are roomy perfect for yard work also!
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Reviewed in the United States on May 29, 2026
★★★★★ 3
You get what you pay for
Size: 3X-Large, Color: 2 Pack - Black
These are certainly comfortable, and the material itself is decent. However, the material is thin and therefore prone to puncture if you are not careful. The biggest issue is the drawstrings are very poorly sewn in, and have broken out on every pair I have purchased. Instead of being a solid loop that ties in the front, the ends are sewn in the back. The fit is true to the size listed, as long as you are okay relying exclusively on the elastic waistband. They are somewhat acceptable for the price.
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Reviewed in the United States on April 17, 2026