Need different battery?

[TOLMACH]

Originally Posted by talnlnky

if you want to do autocross & have a tiny battery with a very small reserve capacity PLUS have a stereo too.... then think hard about upgrading your alternator, and NEVER run your stereo when your car is turned off.

ps, upgrading your alt is very expensive, I paid $400 to have one built for my mazda, and it only did 160amps.

Just curious

Did the more powerful alrernator reduce the gas mileage on your Mazda?

Thanks