Okay...I've searched and read many posts on different exhaust set-ups and have about decided to do the Gundo Hack on my 997.1 C2S. I think this will give me the sound I'm looking for. In addition, I'm wondering if I would gain some power also by adding FabSpeed's X-pipe Sport Cats (or AWE Sport cats)? Since I'm saving so much $ by doing the hack, I wouldn't mind spending it on the sport cats for a little less restriction and more power. I do not want to do this if drone is going to be an issue and I've heard the X-pipe sport cats have less drone than others. Anyone have this set-up and can provide feedback? Thanks!