Optima 8071-167 is a group 57 T2 yellow top, it's 450cca 27.2 lbs, and I was told it is used in race cars for lighter weight. There might be a red top version with more CCA's.
Any AGM battery is already lighter than a flooded type battery.
Last edited by David Pozzi; 03-11-2010 at 08:13 PM.
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