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Best Seller Holley Ls3 Hi-ram Lower Efi Manifold Satin Twin Pack [H3Z4UBbT]

$79.99 $255.99 -69%

Holley LS3 Hi-Ram Lower EFI Manifold Introducing the Holley LS3 Hi-Ram Lower EFI Manifold, a cost-effective solution for high-performance applications where induction system height is not a constraint. This innovative manifold is designed for Racing/

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Best Seller Holley Ls3 Hi-ram Lower Efi Manifold Satin Twin Pack [H3Z4UBbT]

Holley LS3 Hi-Ram Lower EFI Manifold

Introducing the Holley LS3 Hi-Ram Lower EFI Manifold, a cost-effective solution for high-performance applications where induction system height is not a constraint. This innovative manifold is designed for Racing/Performance/Street Rodder enthusiasts where hood restrictions are not a consideration. With its aggressive, bold, race-bred styling, this manifold is perfect for drag race, muscle car, marine, off-road, sandrails, pulling trucks, track, and street-rod applications.

Key Features and Specifications

The Holley LS3 Hi-Ram Lower EFI Manifold offers several standout features that make it an excellent choice for high-performance applications. The manifold features a port size of 2.49” height x 1.21” wide, ensuring optimal air flow. It comes with a mounting flange gasket type of Round 3/32” O-Ring Viton, 3” I.D., and a plenum top gasket type of 3/32” Round O-ring Cord. The runner length is 6.50”, with an as-cast runner cross-sectional area that tapers from 4.25” to 2.77 in². These specifications make the manifold a high-flowing solution for both N/A and forced induction applications.

Brand and Warranty Information

This Holley LS3 Hi-Ram Lower EFI Manifold is crafted by Holley EFI, a trusted name in the automotive industry. The manifold is constructed using a durable cast material, ensuring long-lasting performance. It is also compliant with emission code 3, making it suitable for use on Uncontrolled (Non-Emissions Controlled) Vehicles and Racing Use Only Vehicles. The Holley LS3 Hi-Ram Lower EFI Manifold comes with a limited 90-day warranty, ensuring your satisfaction with the product. Don't miss out on the opportunity to enhance your vehicle's performance and style with this high-quality manifold.

What Our Customers Say

January 30, 2026

Absolutely no complaints!

A great gadget that performs so very, very well.

- Aneurin I..

January 30, 2026

Absolutely no complaints!

I'm happy with this. It is truly, truly, truly, truly great.

- Morgan T..

January 30, 2026

Absolutely no complaints!

A great item. So happy with it all around the whole board.

- Morfydd U..

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