J2 Engineering J2-CBE-OS-055 Cat Back Exhaust System [Compatible with 10-13 Mazda 3 Hatchback 2.0L]

Edit: After further review another star has been added. To be fair to the product, Amazon does state that it does not fit the model. Even though the tool is not bulletproof it was more or less correct. If you have the tools and ability to install, this muffler looks and sounds amazing.It lines up perfectly, but will not fit stock piping without some help. The holes on the stock piping were slightly smaller than new hardware, so I had to drill out the holes.Once you get it on the stock hangers you will realize that the muffler tip touches the cutout in the bumper, meaning modification or getting new hangers. I've ordered some new 4 hole hangers that should do the trick, but for now I've got a small strong spring putting tension on the muffler mount and keeping it off the bumper.The sound is definitely better than stock, with a slight idle noise. The sound performance is the only reason for the 3 stars as this muffler is really designed to be used with the full catback system. It's good, but you better have some tools.