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The COMP Cams XFI Xtreme Energy-R XEr287HR cam is specified for large-cubic-inch LS1 and LS6 engines and features XE-R lobe designs for high-RPM operation. It’s intended for builds with increased displacement where XE-R characteristics are desired, and it requires appropriate tuning and valvetrain matching to make the most of the cam’s extended top-end power potential.
COMP Cams Camshaft LS1 XEr287HR-12
