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Ships within 48 hours · Estimated delivery Aug 14 - Aug 19
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Universal MPFI Main Harness - 558-104Overview: Universal MPFI Main Harness for HP EFI & Dominator EFI Features: Application: Year Make Model Submodel Engine Size Universal Specs: Brand Holley EFI Emission Code 3 Harness Application Ford Harness Application GM Harness Application Universal Harness Type Main Product Type Universal MPI Main Engine Harness
Overview:
Universal MPFI Main Harness for HP EFI & Dominator EFI
Features:
Application:
| Year | Make | Model | Submodel | Engine Size |
|---|---|---|---|---|
| Universal |
Specs:
| Brand | Holley EFI |
|---|---|
| Emission Code | 3 |
| Harness Application | Ford |
| Harness Application | GM |
| Harness Application | Universal |
| Harness Type | Main |
| Product Type | Universal MPI Main Engine Harness |
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
4.1 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 5
Good shirts
Color: Black Diamond & Dots, Size: Large
Nice shirt. Pattern true to pictures. True to size unless you're 6'2 and you want to leave the shirt untucked, it's a bit short.
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Reviewed in the United States on April 14, 2026
★★★★★ 3
Thin material
Color: Blue Dots Check, Size: X-Large
Just thin Bought Malberg shirt same time for $9 more but fabric was far superior
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Reviewed in the United States on May 22, 2026
★★★★★ 5
Great polos at a great price
Color: Blue/White, Size: Large
Pleasantly surprised at the quality of these shirts. A bit heavier of a fabric then I anticipated but will be perfect for spring and fall. The size (large) was in fact large. :)
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Reviewed in the United States on March 8, 2026
★★★★★ 1
Avoid. Very thick
Color: Black/Red, Size: Large
Avoid. This is a thick shirt. Can’t wear during summer
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Reviewed in the United States on November 21, 2025
★★★★★ 5
Nice shirt
Color: Blue/White, Size: X-Large
Nice shirt
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Reviewed in the United States on April 16, 2026