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LSXR 102mm Standard Intake Manifold Rectangle Port LS3/LS9/L76/L92/L99/LSA
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FASTPART NUMBER: 244-146102B

LSXR 102mm Standard Intake Manifold Rectangle Port LS3/LS9/L76/L92/L99/LSA

$1,25995
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LSXR Intake Manifolds
LSXR 102mm Standard Intake Manifold
  • Rectangle Port
  • LS3/LS9/L76/L92/L99/LSA

    FAST 146102B LSXR 102mm Standard Intake Manifold Features: 

    • A 3-piece unit designed for either a stock throttle body or a big mouth 102 mm throttle body 
    • Constructed from advanced polymer material
    • Designed for GM LS3/L99/L92/L76 engines
    • Offers benefits over aluminum aftermarket intakes, including lighter weight, increased strength, and improved heat dissipating characteristics

    FAST 146102B LSCR 102mm Standard Intake Manifold Notes: 

    Throttle Body Unit Features
    • Requires the re-use of factory O-rings intake seals or the purchase of seals separately.
    • Drive-by-wire engines have the option to re-use the OEM GM electronic 4-bolt throttle body.
    • Not compatible with cathedral port heads.
    • 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.

      Show More

      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 Height10.0
    Package Width16.5
    Package Length28.0
    Weight20.48 PG
    Part CategoryPerformance Parts
    Throttle Body Bore Size (Mm)102
    Part FitmentSemi Universal
    Vendor Part Number146102B
    Package Qty1
    Package TypeEA
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    LSXR 102mm Standard Intake Manifold Kit

    FAST

    LSXR 102mm Standard Intake Manifold Kit

    Part Number : 244-146102BK
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