I did this since I have a Griffith's aftermarket a/c, lots of electronics, a subwoofer, etc. Bi g difference in displayed voltage on my voltmeter, especially at idle.
https://www.classicretrofit.com/en-us/collections/upgraded-alternators/products/porsche-911-high-output-175a-alternator-kit-1984-1989
Also did there fuse panel conversion from ceramic bullets to modern blades.
Good luck.
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2002 GMC Yukon SLE - 4AT - Purchased New in 2002
1988 911 Cab - 5MT - Purchased Used in 2005
2008 Cayman - 5MT - Purchased New in 2007
2014 911/50 - #1173 - 7MT - Purchased CPO in 2014
2019 Macan S - 7PDK - Euro Delivery/New in July 2019
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