Howdy all. New (to me!) Edge owner and forum member. I was going to post a new thread, but it's relevant enough here. I have a 2010 Edge Sport, just picked up this weekend, and though I'm still getting used to it, I feel it could use a little performance boost. I've read a few discussions here about cat-back exhaust systems and I have used one myself... I used to have a 2000 Explorer Sport with a Borla cat-back that I had installed, and it made a tremendous difference in performance. My only beef with that was an uncomfortably-high pitch at a certain RPM range (I forget what, but it's at the high end before the next gear would kick it). It was suggested to me back then that it may not have been installed properly, which is possible (long story, but the shop that installed it did a sloppy job). That said, I'm hesitant to do a full cat-back partly due to the cost, but also because I don't want to risk having a similar problem with high pitch like before. So I'm considering a simple performance muffler swap-out. I don't expect I'd see the equivalent performance boost to a full cat-back, but that's OK. Anyone have any thoughts or experience with that route? Thanks.