Have you priced all that stuff out yet? I know the Tubi exhaust for my car is like $2,500. I'm sure it would be more for your car. I did stumble across a set of resonator pipes (that allow you to replace the catalytic convertors for testing or track purposes :wink
and they were $650 for the pair.
On the plus side, everyone I have heard of that has a Tubi exhaust loves it! The engine is basically just an air pump, so anything you can do to help the air get in and out will increase the performance. However, with more air you need more fuel. I looked at the Powerchip that is the banner above and they said your car stock has 375 hp and 268 lb.-ft.
With just the Powerchip you would get between 405 hp and 408 hp, and it's torque to between 286 lb.-ft and 289 lb.-ft. They want $2,450 for your car but that includes installation. This is their datasheet for your car: http://www.powerchipgroup.com/intera...sp?pid=Fer0013
Personally, 375 HP is no slouch. I'd wait until you actually get the car and see if you like it the way it is. If you just want it to make more noise you can slap a Tubi on but I don't think you would get the full benefit of the increased airlow without dialing in the fuel and timing to match.
If you are serious about doing this, I'd contact these Powerchip guys, tell them what you want to do and see what they say. Find out what it would cost for you to do the whole job instead of just half.
You may also want to find a shop with a dyno and get a baseline stock reading and have it re-tested after each modification. Dyno shops are also a great place to get performance advice.