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Holley Modular Lo Ram EFI Intake Manifold Kit Natural GM LS1 LS2 LS6 Oil Pan Just because you can't see FGXX 668603 Just because you can't see it this intake will look great under the hood of your 2021 22 GMC Yukon Specifications : The Holley LS1 2 6 Lo Ram intake manifold kits are designed for GM LS Gen III and IV engines equipped with GM LS1 2 6 (cathedral port) cylinder heads
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