Okay, I already have a 2 inch by 9 inch glasspack replace the factory muffler. The rear resonator was removed and a nice Rectangular (??? I just wanted something other than a Fast and the Furious look [???] ) chrome tip was welded at the end to finish it off. I think it's borderline rice, cool sounding. It's got a nice deep rumble. I was not looking for performance so I just wanted a little bit louder sound but not "weed-wacker" like. Has any of you guys installed one in you Focus and what are your feelings about it? I am 50/50 about that's why I am asking. I was looking for something cheap ($15 for the glasspack) so that's why I ended up with this. I am considering replacing the glasspack with a Magnaflow muffler but afraid it might not sound good. I am looking for something that sound like "air" instead of a bee or low rumble. Don't get me wrong, I enjoy the sound of the muffler, I am just afraid not many people appreciate it, so I am looking for something quieter. Any input?