For the record, the G37 vs 370Z sound difference is due to the resonator and muffler difference. They use the same exact Y pipe, mid pipe is about 6" longer, and the muffler can be swapped without any problems but the tips stick out an extra 2" or so. So if anyone wants the G37 sound, swap out the 370Z resonators for G37 resonators (~$100) and get the G37 muffler (~$100). Best boom for your buck.
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