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Holley Efi 558-434 Digital Dash I/O Adapter W/Terminated Vehicle Harness
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Vendor: Holley Efi
Type: Electrical
Sku: WBCARB01HA80V9Y
Available: Available
Sold by Carkart, an authorized reseller.
Returns accepted within 30 days | support@carkart.com
Shipping Information
- Free Standard Shipping — United States only
- Processing Time: 1–3 business days
- Estimated Delivery: 3–5 business days after dispatch
- Double-boxed, fully insured & discreetly packaged
- Tracking number sent via email once dispatched
- Orders over $250 require signature upon delivery. Taxes calculated at checkout.
Returns & Refund
Returns accepted within 30 days of delivery.
Damaged or Defective Item
Free return shipping + replacement or full refund
Wrong Item Received
Free return shipping + replacement or full refund
Change of Mind
Return shipping at customer's expense · 25% restocking fee applies
All returns require a Return Authorization (RA) number before sending.
View Full Return & Refund Policy
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Holley Efi 558-434 Digital Dash I/O Adapter W/Terminated Vehicle Harness
$506.90
FAQs
Have a question ? We are here to help.
Is the shipping free?
Yes, we offer free standard shipping on all orders within the United States.
When will I receive my item?
Domestic orders typically arrive within 3-5 business days. Delivery times are estimated and may vary depending on your location, weather conditions, or other unforeseen factors.
Can I change or return my item?
We hope you love your purchase, but if you need to make a change or return your item, we’ve got you covered! You can initiate a return or exchange within 30 days of receiving your order. Please ensure the product is in its original condition and packaging. For more information on our return policy, please visit our Returns & Exchanges page.
Frequently Asked Questions
- Q: What are the dimensions of the Holley EFI 558-434 Digital Dash I/O Adapter? A: The dimensions are eleven point two inches in length, ten point seventy-one inches in width, and three point eighty-two inches in height.
- Q: What connectors are included with the Holley EFI 558-434? A: Yes, it includes a waterproof twenty-six pin connector that is similar to those used on EFI units.
- Q: Does the Holley EFI 558-434 come with any additional components? A: Yes, it comes with a USB memory stick to update the digital dash firmware that supports the adapter.
- Q: How do I install the Holley EFI 558-434 Digital Dash I/O Adapter? A: To install, connect the adapter to your digital dash and the vehicle harness, following the provided instructions for a secure fit.
- Q: Is the Holley EFI 558-434 suitable for my vehicle? A: Yes, it is designed to be compatible with Holley EFI systems and can be used in a variety of performance applications.
- Q: Can I use the Holley EFI 558-434 with other brands? A: While primarily designed for Holley EFI products, it may work with other systems, but compatibility is not guaranteed.
- Q: How do I care for the Holley EFI 558-434 adapter? A: Keep it clean and dry, avoiding exposure to harsh chemicals to ensure longevity and optimal performance.
- Q: Is the Holley EFI 558-434 waterproof? A: Yes, the adapter features a waterproof connector, making it suitable for various environmental conditions.
- Q: What is the warranty policy for the Holley EFI 558-434? A: The product typically comes with a manufacturer's warranty, but specifics should be confirmed with the retailer.
- Q: What should I do if the Holley EFI 558-434 arrives damaged? A: Contact the retailer immediately to report the issue and initiate a return or exchange process.
- Q: What additional inputs/outputs does the Holley EFI 558-434 provide? A: It provides ten additional inputs and outputs to the seven inch digital dash, enhancing its functionality.
- Q: Is professional installation recommended for the Holley EFI 558-434? A: Yes, while it can be installed by knowledgeable users, professional installation is recommended for optimal results.
- Q: How does the Holley EFI 558-434 improve my digital dash functionality? A: It expands the capabilities of your digital dash by adding more inputs and outputs, enabling advanced features.
- Q: Is this adapter compatible with LS engine applications? A: Yes, it is designed to work seamlessly with GM's popular LS engine performance setups.
- Q: What type of materials is the Holley EFI 558-434 made from? A: The adapter is made from durable automotive-grade materials, ensuring reliability in performance applications.
- Q: Can the digital dash firmware be updated easily? A: Yes, the included USB memory stick allows for straightforward firmware updates for the digital dash.