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FST146102 - FAST LSXR? 102mm Intake Manifold ? L92/LS3 Car

This product may require vehicle validation(s) for proper fitment. Please contact us to confirm correct vehicle fitment and usage.



Fits LS Rectangle port cylinder head equipped applications (LS3, L99 & L76)

50 State Legal Intake - C.A.R.B - E.O. D-279-8

FAST™ engineers teamed up with the airflow specialists at RHS® to develop the LSXR™ Intake Manifolds for cathedral port LS1/LS2/ LS6 engines and rectangular port GM LS3 and LS7 engines. The LSXRT™ Intake Manifold was developed for the GM 4.8/5.3/6.0L cathedral port truck engines and cathedral port LS1/LS2/LS6 race applications where hood clearance is not a concern.

  • Constructed from an advanced polymer material that offers a host of benefits over aluminum aftermarket intakes, including lighter weight, increased strength and improved heat dissipating characteristics.
  • 102mm air inlet that is perfectly suited to the FAST™ Big Mouth 102mm Throttle Body™, but the manifolds can also be used with any OEM or aftermarket 4-bolt 90mm or 92mm throttle bodies.
  • Innovative multi-layer design with removable runners for quick and easy disassembly and porting, integrated nitrous bungs and a precise bolt-on fit that permits the use of factory accessories and OEM fuel/emission connections without adjustments or clearance issues.
  • When used with a Big Mouth 102mm Throttle Body™, the LSXR™ Intake Manifold produced gains of 16+ Horsepower on a near stock LS7 engine and 26+ Rear Wheel Horsepower on a 500cid RHS® LS Aluminum Block based engine.

    FAST™ Fuel Injector Spacer Kit for for use with OEM Rails

    FAST LSXR™ LS3/LS7/L76/L99 Billet Fuel Rail Kit

    Drive-By Cable Throttle Body Options

    Big Mouth 102mm Throttle Body™

    Big Mouth 92mm Throttle Body™

    Note: Drive-by-wire engines can re-use the OEM GM 90mm 4-bolt throttle body

  • Application List



    • 146102
    • 146102
    • 036584197751
    • Fast
    • New


    Shipping Information

    • Item Requires Shipping
    • 19.4 lbs.

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