Installed Corsa 3" on my 2007 Ron Fellows Z06, and love the sound!

I installed the Borla Stinger Catback System on mine which is an aggressive system and have no complaints about drone. It sounds great and increased fuel mileage a bit.

I just had a Corsa Extream installed what a nightmare It lasted two days then I reinstalled my stock exhaust. nothing but drone you can't stand the sound inside the car, I called Corsa and asked about there no drone policy more or less to-bad $1,680.00 wasted. and they will get back to me..  I went to Borla a system and have no complaints about drone

I opted for B&B PRT's with 4.5" oval tips, no headers.  I had the option of utilizing the X-Pipe, but decided against it, since I have a 6-speed.  Performance wise, my C5 is not jacked up, so I thought the tone of the PRT's was appropriate.  Then again, Baskin Robbins makes 31 flavors!