That is what I thought. Well, I think that doing the turbo back will prove best for horsepower gains and most bang for the buck. Cause I talk with a Subaru Tech and he told me that there is very little to gain from uppipe and headers, unless you change out the turbo too.
I have been looking for a turbo back exaust for my sedan. I like the dual exaust look on my car and the only exaust systems that I have found have all been for the 5 door (single exaust on the R side). Has anybody seen a dual style exaust online?