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Air and Fuel› Intake Manifolds and Components

Lsx

LSXR 102mm Race Intake Manifold

Name: LSXR 102mm Race Intake Manifold
Brand: Lsx
SKU: FAST-146104B

$1,381.54 $1,218.27 Save $163.27

SKU: FAST-146104B

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Non-Returnable Item

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Overview

The FAST LSXR 102mm Race intake manifold is designed for GM LS3/L92 engines, offering bolt-on performance gains without sacrificing low-end drivability. Constructed from advanced polymer, it is lighter and stronger than aluminum alternatives, while also resisting heat sink effects. This race version features shorter and straighter runners compared to the original LSXR, making it ideal for highly modified, track-oriented applications.

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The FAST LSXR 102mm Race Rectangle Port Intake Manifold is engineered for GM LS3/L92 engines, delivering substantial bolt-on performance enhancements while maintaining low-end drivability. Its advanced polymer construction offers advantages over aluminum intakes, including reduced weight, increased strength, and improved heat dissipation. This race variant is specifically designed for highly modified, track-oriented applications, featuring shorter and straighter runners than the standard LSXR, which have been proven to yield up to 35+ more horsepower. The manifold's modular design allows for fast and easy disassembly, and individual runners can be removed for porting. It features an improved throttle body sealing flange and o-ring gasket, and is constructed from the same durable polymer material as the original FAST LSX 92mm Intake Manifold. This material resists the heat sink effect commonly associated with aluminum. It includes stainless steel bolts, threaded insert throttle body mounts, and all necessary mounting hardware. The LSXR 102mm intake features a 102mm air inlet, integrated nitrous bungs, and a perfect bolt-on fitment that accommodates factory accessories without requiring modifications or causing clearance issues.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

Brand	Lsx
Part Number	FAST-146104B
Category	Air and Fuel

Videos

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2015 SEMA Show | FAST GM LS3 102mm Intake Runner Sets

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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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