Are you looking for Performance type work or just work in general?
Performance: there are a few. AEBS is one, PANN Auto is OK, but not the greatest, Group 5. I used to ahve more but I lost the info. Ask this in ClubSi's so cal section if you want numbers or you can just call 411.
As for general: Horseman Automotive is awesome. They are in Santee next to El Cajon. Good quality work. I would take my car there in a heart beat. I havent needed work done on it yet, but when it does, it will be there. I dont think they do alot with performance though. It would not hurt to ask.
Stay away from Tipton Honda in El Cajon for any kind of service!! THey f*cked up my springs there & refuse to replace them.
BTW: I live in El Cajon. Where exactly you gonna be @?
ALso, hit up
NANASHI IMPORT DESIGN . Its a club we are tying to get going here in SD, OC, LA etc... But most of us are in SD.
Let me know when you arrive, if you are not familiar with the area, I would be happy to show you around.