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The LS6 intake manifold used on the C5 Z06 Corvette and all '01-and-newer LS1 engines offers increased plenum volume and additional airflow over the LS1 intake. SLP Performance offers a cable-activated version of the LS6 intake manifold that retains full EGR functionality for $549.95 (PN 30041). It includes a pre-drilled hole and EGR tube and new intake manifold gaskets, along with a MAP sensor. Since the LS6 manifold sits deeper into the engine valley pan than the LS1 (to support more port volume), the front and rear coolant pipe assembly on the LS1 is replaced with the supplied LS6 pipe assembly, covers and seals.