Do I really need OFC for a very short run?

[Marve_Lous]

Currently I have 4 ga. OFC, but I just upped my amp so I'd like to go 1/0. My battery is under my back seat so the run to the amp is less than 4 ft. Would CCA suffice, or do I really need OFC at more than double the cost?

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[Jeffdachef 5,000+ posts]

Welding cable, eb flex. Same price as cca way better quality than OFC. No brainer.