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This replacement runner set is made for the FAST LSXr 102mm LS1 intake manifold, offering a standard runner profile that boosts midrange torque and horsepower for high-horsepower and race-focused variants. Intended as a direct fit for the LSXr platform, the set provides a straightforward upgrade path to enhance engine breathing where the LSXr manifold is used.
FAST Replacement Runner Set LSXR LS
