lights dimming problem?

I did the Big 3 and swapped to an optima yellow top up front, and noticed a huge improvement. My lights still dim when I'm slammin it hard, but not even 50% as bad as it was before. It's too the point where if I added a second battery, I think it would totally eliminate my dimming.

Cliff notes: Do the Big 3 and upgrade your battery under the hood //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

 
New alternator
Depending on how much power your amps are pulling and if it's too much for your battery to handle, a bigger alt will not resolve dimming. Issue is alts do not increase power output until the regulator senses a voltage drop. If your battery can't handle the amperage draw before the alt can increase its output, you'll get dimming.

 
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