I am having a huge system upgrade and need to find out the yellow-top or optima sizes for our cars?

anyone replaced a stock battery??

 

I am not even sure how to replace the stock battery with how it's wedge in there.

Lunchman

 

if you're having a huge system upgrade, then why not tell them to just put an extra battery in the trunk...if you're getting all the components replaced along with new subwoofers, using our stock battery or replacing it with another stronger battery isn't a good idea...just tell them to put an extra battery in the trunk with all amps and wires