Just remember that when fitting a higher output alternator, and if you have actually added significant additional power consuming items to use that added power output, to also upgauge the ground wire from the battery to the body, and the power wire from the alternator to the battery, and to make sure those high current items which you've added which are higher than what your vehicle's system was designed with, have their own, dedicated power wires, from the battery.
This way you don't let the smoke out of any of your wires.
On the other hand, if you have not added anything of significant additional power draw, then fitting a higher output alternator won't really do anything for you (they only put out what is used). There's no down side, as long as it physically fits.
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