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LSXR 102mm Intake Manifold Cathedral Port  LS1/LS2/LS6
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FASTPART NUMBER: 244-146302B

LSXR 102mm Intake Manifold Cathedral Port LS1/LS2/LS6

$1,25995
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LSXR Intake Manifolds
LSXR 102mm Intake Manifold
  • Cathedral Port
  • LS1/LS2/LS6

    Advanced Polymer Intake Features

    FAST 146302B LSXR 102mm Intake Manifold Features:

    • Constructed from an advanced polymer material
    • Offers benefits over aluminum aftermarket intakes, including lighter weight, increased strength, and improved heat dissipating characteristics

    FAST 146302B LSXR 102mm Intake Manifold Notes: 

    • 50-State Legal Under C.A.R.B. E.O. #D-279-9
    • This is a 3-piece unit designed for the big mouth 102 mm throttle body or a stock throttle body with adapter. For cathedral port heads. Gaskets not included.
    • Premium Synthetic Polimer Intake Manifolds

      Unlock maximum airflow and serious horsepower gains with FAST LSXR 102mm Intake Manifolds, available at JEGS. Designed specifically for high-performance LS engine builds, the FAST LSXR 102mm Intake Manifolds deliver increased airflow capacity and optimized runner design to support higher horsepower applications. Engineered by FAST (Fuel Air Spark Technology), these intake manifolds are a proven upgrade for enthusiasts pushing the limits of their LS-powered vehicles. Whether you're building a street/strip machine or a track-focused setup, this intake system is designed to maximize engine efficiency and power output.

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      Performance Benefits & Key Features

      FAST LSXR 102mm Intake Manifolds are engineered to significantly improve airflow, one of the most critical factors in increasing engine performance. Featuring a large 102mm throttle body opening and high-flow composite runners, these manifolds are designed to deliver more air to the engine, supporting increased horsepower and torque—especially in the mid-to-high RPM range.

      Constructed from advanced composite materials, these intake manifolds offer excellent heat resistance, helping to reduce heat soak and maintain cooler intake air temperatures. This contributes to more consistent performance under demanding conditions. The optimized runner design enhances airflow velocity and distribution, improving combustion efficiency and throttle response.

      Key specifications include compatibility with larger throttle bodies, high-flow fuel rails, and performance cylinder heads. These manifolds are ideal for engines producing 500+ horsepower, depending on the overall setup. The lightweight construction also helps reduce overall engine weight while maintaining durability and structural integrity.

      For performance enthusiasts, the result is improved acceleration, stronger top-end power, and enhanced engine responsiveness. Whether naturally aspirated or paired with forced induction, the LSXR 102mm intake provides the airflow needed to support serious performance upgrades.

      Fitment, Compatibility & Applications

      FAST LSXR 102mm Intake Manifolds are designed for GM LS-based engines, including popular platforms such as LS1, LS2, LS3, and LS6. This makes them a versatile upgrade for a wide range of vehicles, from modern muscle cars to custom LS swap projects.

      Ideal for street performance, drag racing, and track applications, these intake manifolds are commonly used in Camaros, Corvettes, GTOs, and high-performance trucks. They are also a popular choice for LS swap builds in classic muscle cars and restomod projects, where maximizing airflow and power is a priority.

      These manifolds are compatible with aftermarket tuning solutions, allowing users to fully optimize performance gains through ECU calibration. Their design ensures proper fitment with supporting components, making them a key upgrade in high-performance engine builds.

      Backed by FAST’s reputation for innovation and precision engineering, LSXR 102mm Intake Manifolds deliver reliable, race-proven performance. Explore the available options at JEGS to find the right intake solution and take your LS engine to the next level.

    Part TypeIntake Manifold
    Product LineFAST LSXR 102mm Intake Manifolds
    BrandFAST
    Package Height9.52
    Package Width16.2
    Package Length28.0
    Weight20.82 PG
    Part CategoryPerformance Parts
    Throttle Body Bore Size (Mm)102
    Part FitmentDirect Fit
    Vendor Part Number146302B
    Package Qty1
    Package TypeEA
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    Some parts are not legal for use in California or other states with similar laws / regulations
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