What engines does this lower shell fit?

This lower shell is designed for LS truck engines, specifically those with 4.8L, 5.3L, or 6.0L displacements. It is intended for use with cathedral port cylinder heads.

What vehicles does this part fit?

This lower shell fits a broad range of Chevrolet and GMC trucks and SUVs from 1999 through 2019. Examples include the Chevrolet Silverado 1500, Chevrolet Tahoe, GMC Sierra 1500, and GMC Yukon.

Is this part legal for sale in California?

No, this part is not CARB approved and cannot be shipped to California due to emissions regulations.

FAST Intake Manifold Lower Shell 146601 - LSXR

Name: FAST Manifold Lower Shell LSXR
Brand: FAST
Price: 510.91 USD
Availability: InStock

FAST Manifold Lower Shell LSXR

$510.91

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

FAST LSXR 102mm intake manifold lower shell replacement for cathedral port LS truck engines. Verified fitment.

Key Features

Fits 1999-2019 Chevrolet and GMC trucks and SUVs with cathedral port LS engines.
Replacement lower shell for the FAST LSXR 102mm intake manifold.
Designed for 4.8L, 5.3L, and 6.0L LS truck engines.
Constructed from a proprietary precision injection material.
Ensures proper seal and optimal airflow for the intake system.
Direct replacement for the original lower shell component.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Will this fit your vehicle?

Product Details

This is the replacement lower shell for the FAST LSXR 102mm intake manifold, specifically designed for cathedral port LS truck engines. If you're working on a 4.8L, 5.3L, or 6.0L LS truck engine and need to replace the lower half of your intake manifold, this part is what you're looking for. It's built to the same specifications as the original component that came with your LSXR manifold.

Constructed from a proprietary precision injection material, this lower shell is designed to integrate seamlessly with your existing LSXR 102mm intake. This ensures a proper seal and optimal airflow for your engine. The FAST LSXR intake system is a popular choice for LS engine builds, and having a direct replacement part like this lower shell means you can complete your project without hassle.

This replacement lower shell fits a wide range of GM trucks and SUVs from the late 90s through the early 2010s, including popular models like the Chevrolet Silverado 1500, GMC Sierra 1500, and Chevrolet Tahoe. It's important to note that this part is not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly.