Nakamich Service Info

Soundsmith is another excellent source for Nakamichi service. As with Willie Herman, you get what you pay for and you’ll need to be patient.

I did not have a good experience with NJ Factory Service.

Thanks so much. Do you know if they they do any mods or upgrades?

How deep is your pocket?
Lol.
Besides the normal run of the mill cap upgrades there is not much more  a good zx7 needs Tbh.

However check out their website for options and contact info.

https://www.willyhermannservices.com/

ESL labs in CT if you can wait and have the funds.

Willy is also great too.