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The battery pack would also need to be modified or replaced, which adds far more expense.
Not so. A check of Prof. Kelly's videos, and the official GM Bolt parts list shows no different battery for DC vs non-DC. The DC charging is done through the main DC power lines to the battery from the HVDM. As far as the battery is concerned, DC fast charging is just like regen.

Replacing the HVDM, charge socket, and its wiring harnesses are enough of a pain in the butt. The biggest problem, as Prof. Kelly has pointed out, may be getting the cars software to allow the switch.

GM is probably going to be no help. They even seem reluctant to help people repair crashed Bolts at this point.

https://www.chevybolt.org/forum/484543-post70.html
 

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Here's a report of successfully adding DCFC to a Bolt. This is an EV only dealership that's done work on all of the different brands and have the technical expertise to pull this off.
Bravo! I wonder what the cost is, certainly more than the $750 factory option?

Hopefully, they will document and share the process with others so this can become an option for those who have overlooked this important feature, or who's needs have changed.

It remains a shame DCFC is not standard and one would have to pay (for a non-standard option) to have a new Bolt made without it.
 

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Bravo! I wonder what the cost is, certainly more than the $750 factory option?

Hopefully, they will document and share the process with others so this can become an option for those who have overlooked this important feature, or who's needs have changed.

It remains a shame DCFC is not standard and one would have to pay (for a non-standard option) to have a new Bolt made without it.
They certainly won't openly share what they did, as a part of their business is upgrading EVs, e.g. they will upgrade 1st gen Nissan Leafs with the 2nd gen battery (40kwh) for $9-$11k Canadian. Remplacement batterie Leaf / Leaf battery remplacement | Véhicules électriques Simon André
A possibility is that they could strike some kind of royalty deal with other shops, but that's just speculation on my part.
 

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Bravo! I wonder what the cost is, certainly more than the $750 factory option?

Hopefully, they will document and share the process with others so this can become an option for those who have overlooked this important feature, or who's needs have changed.

It remains a shame DCFC is not standard and one would have to pay (for a non-standard option) to have a new Bolt made without it.
It would depend on whether you're buying the parts new or used. In the case of used parts, the floor is pretty low, and you could probably do the conversion for less than $750, depending on who does the labor. Buying new parts, however, would definitely cost far more than the base $750. The Powerline Control Module alone costs $150 new.
 
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