For all the people impressed by names, and thinking certain brand is worth overpaying, know that you can get a full header back exhaust, hand made, V-band connections, high quality SS 304, ridiculous welds, for less than $1,500 by going with a local proven and reputable shop.
I got mine, full 3 inch (I'm turbo which quiets it more but even compared to 2.5 turbo cars..) and people can't believe it is 3 inch. It's quieter at idle than a 2.5 axleback, by far. Cruising is almost stock like sound. of course all of this is because I wanted it quiet but it can also be made as loud as you want too.
Regarding the tune, there are a few competent tuners out there, top choice @
jamesm who doesn't compromise driveability with making power, they both go hand by hand for him......
If you have money to throw away and getting parts with X name is the most important factor in your purchase, go for it....
But the package does not offer any performance/reliability/quality benefit over a setup you can piece together.