My experiences with these shops:

All were nice guys.

RR: Took my car there for pulley install & dyno. Was told car was detonating during first dyno pull, then they proceeded to make another full pull w/out making any changes (no SCT software). Why they ran it again, I don't know.

BO: Thermostat install (not long after visiting above shop). Car lost coolant and overheated. I added coolant & burped the cooling system correctly, problem gone.

RP: Got 2 price quotes (same) for suspension work. First, before I went. Second, before I left the parking lot after dropping the car off. Upon picking the car up I was given a bill for TWICE the amount I was quoted. Was told that the job took 2 guys 4 hours to do. Other owners claim to have done the job in 1-2 hours by themselves.

CD: CB & CAI sale + install. Perfect install. Sam actually gave me a used stock H-pipe free of charge. BTW, I was quoted $300 by another shop above for a used H-pipe.

Just sharing my experiences. Good luck whoever you choose.