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Description
LSX Main Harness Connector Kit - 570-103Overview: Introducing EFI Engine Connector Kits From Holley EFI. With the latest addition to our ever expanding Wiring Shop, our goal was to provide you with every engine connector used on the Holley EFI main harnesses. If you are building a custom engine harnesses for your ride, but you do not have the time to hassle with sorting out every connector, pin, seal and tpa, then these kits are for you! Kits are available for most common domestic V8's,
Overview:
Introducing EFI Engine Connector Kits – From Holley EFI. With the latest addition to our ever-expanding Wiring Shop, our goal was to provide you with every engine connector used on the Holley EFI main harnesses. If you are building a custom engine harnesses for your ride, but you do not have the time to hassle with sorting out every connector, pin, seal and tpa, then these kits are for you! Kits are available for most common domestic V8's, such as; LS, Coyote, 2V and 4V Modular, and GEN III HEMI engines.
Features:
- OEM Quality Connectors – Pins, seals, and TPA’s for every engine sensor
- Pairs perfectly with flying lead harness (part number 558-126) when building a custom engine main harness
Application:
| Year | Make | Model | Submodel | Engine Size |
|---|---|---|---|---|
| Universal |
Specs:
| Brand | Holley EFI |
|---|---|
| Emission Code | 4 |
| Product Type | Connector Kit |
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
4.4 ★★★★★
Based on 28 reviews
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Product Reviews
★★★★★ 5
Great-Tasting Protein Shake With Fresh Product Dates and Excellent Nutrition
Flavor Name: Chocolate, Size: 11 Fl Oz (Pack of 12)
I picked up this Premier Protein chocolate shake 12-pack mainly as a convenient daily protein option, and overall the quality has been excellent.
The chocolate flavor tastes very good without being overly sweet, and the texture is smooth compared to many protein drinks that can feel chalky or heavy. The 30 grams of protein also make it very practical for quick meals, post-workout use, or busy days when preparing food is not convenient.
One thing I appreciated is that the product arrived with fresh expiration dates, which is important when buying protein drinks in bulk. The packaging was also in good condition, and the bottles were easy to store and carry.
The nutritional balance is another strong point, especially with the added vitamins and minerals included without extra added sugar. Compared to many other ready-to-drink protein shakes, this one feels lighter while still being filling and satisfying.
In terms of value for the money, it feels like a very good purchase considering the quality, nutrition content, convenience, and freshness.
Overall, a high-quality protein shake with excellent taste, fresh product dates, strong nutritional value, and very good everyday convenience. It can also be mixed with other flavors.
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Reviewed in the United States on May 28, 2026
★★★★★ 5
Delicious, Nutritious, and Full of Proteins and 24 Vitamins & Minerals !!
Flavor Name: Chocolate, Size: 11 Fl Oz (Pack of 12)
The Premier Protein Shakes are offered in Chocolate and several other flavors, all very good and tasty in my humble opinion ! If you are looking for a drink with a lot of protein - 30 Grams Protein and numerous other vitamins and minerals all with NO ADDED SUGAR, try these drinks. You will be glad you did... it is a great way to begin your day or even drink at mid-day for a healthy pick-me-up. They are so easy to use in this box style container and also come in bottles. The chocolate is so delicious, try it, then try all the other flavors, like Cafe Latte, Caramel, Vanilla, Strawberry. You will be delighted with getting your nutrition in a really chocolatey drink.
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Reviewed in the United States on May 3, 2026
★★★★★ 5
What's small and powerful and full of protein?
Flavor Name: Chocolate, Size: 11 Fl Oz (Pack of 12)
This is better than expected - filling - chocolate-milkish taste - lots of protein - only o few calories - good for
times you want to eat less but still have energy - It is a good product to have on hand - it is filling - this
is not exciting but rather useful in a busy life -when you don't want to cook, before a medical procedure
or any situation where less is more. The taste is good enough - best ice cold - I would recommend this
product.
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Reviewed in the United States on May 15, 2026
★★★★★ 5
Good taste, No sugar, Low Carb, High Protein
Flavor Name: Chocolate, Size: 11 Fl Oz (Pack of 12)
Highly recommended, no sugar, low carb, high protein.
This exceeded my expectations. It tastes good chilled, much better than other forms of protein supplements.
I have never had a ready mixed protein shake, so I was hesitant about buying it.
Protein powder always tasted too strong & not good after taste.
Although there are some Ok Protein bars, they do mostly have undesirable taste & not good after taste.
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Reviewed in the United States on March 27, 2026
★★★★★ 5
Great drink Great value
Flavor Name: Chocolate, Size: 11 Fl Oz (Pack of 12)
Love these drinks 30 grams of protein can’t go wrong. They taste is good the texture is not an issue. I blend mine with ice you can even put coffee in it and that is amazing.
It is like a choc cappuccino.
I feel better when I drink one in the morning.
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Reviewed in the United States on May 13, 2026
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