I’m located 45min northeast of Sacramento and am in need of a good local shop. Will be needing a custom turbo back exhaust done and a couple other smaller things. Any help will be greatly appreciated.

 

There are not many good shops in the bay area for honda turbo cars as; it's not very illegal to boost your AP1 with smog laws; state ref ect so many shops won't even touch it.
Only legal options would be a greedy kit; but who wants 300whp on a turbo..

It's not much help but Phil at https://www.instagram.com/spoolinphil/ s in San Jose he does custom turbo work and takes customers cars; but it's a bit far. You can DM him ask he does other cars and does great custom fab. He did my Turbo Civic back in the day. Custom kit

You also might want to look into a P tuning kit and an E tune if something you are looking to take on yourself it's one of the more complete kits out there. Best of luck.
https://www.ptuning.com/ptuning-s200...-ptp-tbk-30300

Also There is a boosted S2000 facebook group
https://www.facebook.com/groups/165828360747515/
You might have better info asking there.