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Description
Holley EFI 12.3 Standalone Pro Dash - 553-116Overview: Holley has done it again, a pair of industry leading digital dashes for the masses!: Have you always wanted the look of a modern digital dash in your project vehicle but lacked an ECU or fuel injection system that supported one? Holley has you covered with two amazing new standalone dash options. Just like traditional gauges, you can install these in almost anything! The 6. 86" version is big on features, but small on size for installation
Overview:
Holley has done it again, a pair of industry leading digital dashes for the masses!:
Have you always wanted the look of a modern digital dash in your project vehicle but lacked an ECU or fuel injection system that supported one? Holley has you covered with two amazing new standalone dash options. Just like traditional gauges, you can install these in almost anything!
The 6.86" version is big on features, but small on size for installation almost anywhere. Measuring 3.5" tall by 7.6" wide, it's easily mounted in a console / dashboard, off a roll cage or on a steering column. The full color touchscreen makes it easy to interface the various screens. It even includes a 10 LED shift light!
The 12.3" version is for the hard-core enthusiast who wants it all. Measuring 11.5" wide by 4.25" tall, you receive a full view of critical data thru programmable gauges, warning lights, switches and other on-screen features.
These new digital dashes are full of features that support most any user, weekend warrior to professional racer.
Don't be left in the dark with traditional gauges, upgrade to a Holley Pro Dash and get the facts on your engine!
Features:
- Standalone digital dashes for installation in most any vehicle – no ECU or fuel injection required.o As easy to install as traditional gauges!
- Two models available:
- 6.86” version is big on features, but small on size for installation almost anywhere!
- 12.3” version is for the hard-core enthusiast who wants the ultimate display device!
- High resolution, state-of-the-art, multi-gauge touch-screen display with fully configurable layouts:
- Full color, capacitive touch screen with auto dimming offers crystal clear data at your fingertips – day or night – no stylus needed
- Quickly swipe between multiple active screens (tune, warm-up, race, drive, etc.)
- Virtual switch panel eliminates the need for external toggle switches
- 16 default backgrounds skins pre-loaded with unlimited options for importing custom layouts
- Built-in GPS with speed, odometer and trip odometer function (external antenna included)
- Integrated 10-LED programmable shift light w/ 4-LED warning indicators for other sensor inputs. (6.86” dash only)
- Rendered analog (dials / needles) and digital gauge styles available
- Integrated datalogger
- Rugged, water resistant case is constructed of cast aluminum for long life and durability
- Plug and play features are pre-configured in the harness and include dash layouts / screens for::
- Oil and fuel pressure, coolant and air temp (utilizes plug and play Holley sensors, not included)
- Turn signals
- High beam
- Fuel level
- Engine vacuum / boost
- Additional input and output functionality:
- 13 multi-configurable inputs
- 4 ground switched outputs
- Four speed channels (two dedicated) for RPM, driveshaft speed, or any other Hall effect speed input
- User definable channel alarms and warnings
- Communications / Harness:
- 4 Pin Wiring Harness contains Power, Ground and CANbus connections
- Holley EFI CANbus connection for expanded capability with Holley EFI systems
- Expandable storage via USB
- Integrated Datalogger:
- Internal Log Memory – 1 GB (expandable up to 32GB with addition of micro-SD card)
- External Logging to USB Flash Drive is also available for easy file management
- On-screen datalog playback allows you to review vital run information right on the dash
- Full analysis via laptop is available. Simply download the file to a USB drive and view with the free datalog viewer at Holley.com
- Flexible mounting options: Surface or flush mounting, with high quality hardware included
- Simple setup and programming: USB Keyboard and Mouse functionality makes it quick and easy to setup new layouts
- Fully Upgradeable:
- Upgradable with future software enhancements
- Can easily be converted for use with Holley EFI to monitor up to 238 real-time values such as RPM/TPS/Boost
- Compatible with Holley EFI Plug and Play Programmable Shift Light - Part Number 553-107
- What’s Included:
- Both dash versions include harness / cables, mounting hardware, USB memory stick and CAN terminator
- GPS Antenna
- Sensors not included
Application:
| Year | Make | Model | Submodel | Engine Size |
|---|---|---|---|---|
| Universal |
Specs:
| Application | Universal |
|---|---|
| Brand | Holley EFI |
| Depth | 1.25" |
| Height | 5.81" |
| Product Type | Digital Dashes |
| Screen Size | 12.3" Viewing Area |
| Screen Type | Capacitive Touch Screen |
| Width | 13.44" |
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
4.6 ★★★★★
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Product Reviews
★★★★★ 5
It works... very well... for me. VERY WELL.
I typically detest American companies as many of the products contain both harmful and helpful ingredients at the same time. So far, Prequel has EXCEEDED my expectations.
PROS: It works for my skin. EWG gives good scores to Prequel also. Skin looks great afterwards. No scent. Lasts for hours with a healthy skin tone. You don't have to use a lot to cover an area (see below).
CONS: Slightly greasy when applied so it not a lightweight cream. Small tube (see below). Pricey.
You don't have to use a lot. I find that due to its slightly greasy nature, you can use much less to cover a greater area. Afterwards the greasiness disappears, leaving plump, healthy feeling skin texture.
As with any skincare product, your skin may react differently. I have tried major Western brands which worsened my skin (Cereva for instance) before switching to Korean & Japanese products (far superior). Prequel is now the only Western brand I will use on a regular basis, to include their bar of soap (superior to my regular Korean brand).
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 14, 2025
★★★★★ 5
Great dry spot treatment!
Worked wonders on winter dry patches on my cheeks and sides of mouth. I’m a somewhat new Prequel product user. I follow the creator on YouTube and love her skincare videos. I have tried a few products so far and have been happy with the results. I just ordered the foot repair ointment for my husband as well. I think this brand is a great value for the money. I have not had any bad reactions so far and I have VERY sensitive skin. This ointment is lightweight and melts into my skin well and the next morning my dry spots were literally invisible. It’s fragrance free, I did not notice any scent at all, which is importance to me.
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Reviewed in the United States on January 3, 2026
★★★★★ 4
Prequel is always great
Very soothing and calming for skin. Tube lasted a long time. I have sensitive skin and often have reactions but did great with this.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 14, 2026
★★★★★ 5
This is a barrier cream?
I also have very oily skin, so normally I stay away from anything that says barrier or balm. I push skin a lot lol...with max strength tretinoin, glycolic acids, salicylic acids, vitamin C... so there are times when I just need max help from a richer product bc sometimes I take it too far. LRP Cicaplast has been a staple and has saved me many a times.
I bought this bc of the high percentage of ectoin, 5%, and it was so reasonably priced. When I squeezed the tube, I was really worried, it was thicker looking than the Cicaplast. However, when I spread it out, it was SO light and a tiny amount --barely a pea size, was enough to coat my face. It did not feel heavy. Even with my oily skin, I think I could wear this everyday.
As an experiment, I applied any excess on one side of my hand, as I'm right handed, I would apply it on my left hand. I've had this about a week, and right now after doing the dishes, and washing my hands multiple times without any hand cream on it, my right hand is definitely drier than my left hand. My left hand also looks less red and more calm.
This formula is 5 stars for both the effectiveness and the elegant formula. It may yet replace my LRP Cicaplast...we'll see!
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Reviewed in the United States on November 6, 2025
★★★★★ 3
Fungal acne
Triggered fungal acne.
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Reviewed in the United States on February 21, 2026