[seankay]

i reacently brought a 07 mazda 6 s v6 and i wanted to know whats the best sounding cat-back exhaust for this car (im looking for deep n load)and were could i buy it?

 

[Mz6GreyGhost]

Moved to a more appropriate section to keep the flames out.

Honestly, run a :search:

There are already dozens of threads about the cat-back systems, and you'll find a variety of choices and different opinions about them. I'm no exhaust expert, but there are plenty of others on this forum that are. Take a look around, and you'll find what you're looking for.