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FAST Racing LSXRT 102mm LS1-LS2-LS6

  • FAST LSX-RT Intake Manifold
  • FAST LSX-RT Intake Manifold
  • FAST LSX-RT Intake Manifold
Your Price:
$961.99 (You save $38.00)
28.00 LBS
Calculated at checkout

Product Description

FAST Racing LSXRT 102mm Intake Manifold (LS1-LS2-LS6)

Designed specifically for GM 4.8L - 5.3L - 6.0L cathedral port truck engines as well as cathedral port LS1, LS2 and LS6 racing applications where hood clearance is not a concern.

The FAST LSXRT 102mm intake manifold follows the path chartered by the original FAST LSX Gen III intake by featuring a modular design that allows for easy porting and disassembly and a runner design that yields an incredible 25 peak horsepower gain over the stock intake, on a stock 6.0L engine with a Big Mouth 102mm throttle body. And similar to the LSXR 102mm intake manifold for cars, the LSXRT features the ability to remove individual runners for modification.

This manifold is constructed from a proprietary precision injection molded polymer which offers many benefits, including lighter weight, greater strength and lower heat soak propensity. While it features a 102mm air inlet that was designed for the FAST Big Mouth 102mm throttle body, it can also be used with stock 90mm or aftermarket 92mm throttle bodies (78mm three-bolt throttle bodies require an adapter).

Other features include integrated nitrous bungs and precise bolt-on fit that permits the use of factory accessories and OEM fuel/emission connections without adjustments or clearance issues. Some GM truck models may require the FAST 92mm or 102mm throttle body.

NOTE: Throttle body not included.


  • Removeable runners for easy porting
  • Perfect bolt-on fitment allows for the use of OEM accessories.
  • Intake and throttle body kits include FAST Racing LSXR intake manifold and FAST Racing Big Mouth throttle body.





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