[Ca$hOnly]

Mech-Tech in Escondido has a Dyno. They are right next door to my work. PM me if you're doing this and I might join you as well. They have done Dyno days for BMW's before.

http://www.mechtech-ms.com/

Originally Posted by FStop7

Call JBA, I think they have a dyno in house

http://products.jbaheaders.com/contact_jba.asp

You can check with group 5, too

http://www.group5motorsport.com/

He asked for San Diego, not San Dimas...that's like 3 hours from here. Also, Group 5 does not have a Dyno, but they might be able to recommend you a place.