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FAST

Intake Manifold LS3 - LSXR 102mm Black Finish

$1,259.95

SKU: F003 146102B

In Stock
In Stock
Ships by Aug 2
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INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Part #: 146102B

Constructed from the same advanced polymer material as the original FAST LSX 92mm Intake Manifold, but now in the popular black color, the LSXR offers a host of benefits over aluminum aftermarket intakes, including lighter weight, increased strength and improved heat dissipating characteristics.

Features:

  • Modular design allows for fast and easy disassembly
  • Removable runners allow for porting
  • Improved throttle body sealing flange and o-ring gasket
  • High quality polymer materials resist the heat sink effecct of aluminum
  • Maximizes potential of other engine performance upgrades like cylinder heads
  • Designed to work with FAST Big Mouth and Big Mouth LT Throttle Bodies
  • Includes stainless steel bolts, threaded insert throttle body mounts and necessary mounting hardware.

The FAST LSX 102mm Intake Manifold for GM LS3/L92 engines provides bolt-on performance gains without any loss in bottom-end drivability. This manifold features our standard design runners for use in mild street-oriented applications.

This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

MIA's Description

The FAST LSXR 102mm Intake Manifold is engineered for rectangular port GM L92/LS3 engines. Developed in conjunction with airflow specialists, this polymer manifold offers significant performance improvements over stock. Testing on a stock LS3 with a 102mm throttle body yielded gains of over 14 horsepower and 11 ft-lbs of torque at the flywheel.

The LSXR manifold features a three-piece modular design for easy disassembly and porting. Constructed from advanced polymer, it is lighter, stronger, and dissipates heat better than aluminum intakes. The 102mm inlet is optimized for the FAST Big Mouth 102mm Throttle Body but also accommodates 90mm or 92mm throttle bodies.

Fitment

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Specifications

BrandFAST
Part NumberF003 146102B

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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