I would STRONGLY recommend Geyer's in Braintree, Mass. They do not advertise themselves as a speed shop as they do work on all types of cars, mostly imports. That said, they have done just about ALL the work on my '99 NSX including:
CTSC with the 9 lb upgrade
CT I/H/E
CT PowerGrip II clutch
HR Springs
Other assorted things
They have tons of exp on Hondas
They do EXTREMELY good work and more importantly have tremendous integrity. Plus, they will not charge you the prices the speed shops get.
After the install there were a few hiccups as the O2 sensors kept coming on. The mechanic who did my car communicated with CompTech until the problem was resolved. Very top notch.
Private me if you want more specifics.