I have Flowmater on my 68 and it is a 3" system, from headers all the way back and I will tell you not too loud and not too low. My 2 cents is, great mild throaty sound. North American Tuning has a lot of 2010 Camaro parts.
I remember you told me that you were thanking about flowmater exhaust, just found this. American Thunder Exhaust Kit by Flowmaster for your 2010 Camaro SS. Go half way down the thread and there is a video show what the stock exhaust sounds like copared with the flowmasters. I would say a mild upgrade. Here is the link http://northamericantuning.com/catal...cnlb9dbtqhfcq0