Turboed GSR'S?

Just looking at my options for this summer and was wondering if there were any gsr’s that were turboed around here. How much boost are you running and did you worry about the higher cr of the b17a? Also, what turbo and what size turbo are you running with your setup? And, what did you replace, and with what? Also, any other knowledge you would like to share about your experience with a turbo gsr?
Thanks,
Jimmy