I'm getting my new WRX wagon next week and i want to change the back box for something more sporty, thinking about a ninja back box does anyone have any comments, want it throaty but not to load, Also is the exhaust for the wagon the same as the saloon.

 

Think it's the same exhaust...but Scoobyworld will tell you if you want a Ninja.
I had a Ninja on my Classic MY00. Very nice B/B for the money. It's big and shiney with a 5" slash tail pipe and makes a lovely flat four burble without being loud. Add a decat D/P and a decat centre and it's a little louder but much deeper. There was no droning in my car cabin, but bear in mind the noise in the cabin of the sports wagon will always be a bit louder then a saloon.
Only reason i don't have a Ninja fitted now is the appeal of the new Afterburner Vortex was too tempting!

 

thanks for the info pappasmurf