i would like to know when an exhaust would be available for a mazda 3 2.0l

Hey Michael,
I have noticed that SRMotorsports has a few diffirent styles available for the Mazda3. They also have other aftermarket parts too. I have been looking at the stage 1 exhaust and the cold air intake for mine.

Is MagnaFlow or Borla a better Cat-back for a Mazda 3? And is there a Cat-back even better out there than those? Anyone know of any good deals on them on the WWW?