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Message: <blockquote data-quote="SourDeez" data-source="post: 7270788" data-attributes="member: 575597">unless your alternator is doing over 200 amps there is really no need to replace it to 1/0.legit ofc 4 gauge is good for I think 160-180 amps.  If you're not running more than that, 4 gauge will be doing its job.Most people just start with 1/0 because the cost isnt that big of a difference and for room to upgrade in the future (1/0 good for 350 amps)also upgrading your fuse holder shouldn't really change anything. its just a fuse</blockquote>

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