I've recently bought a GC8H WRX which is about 90% stock and I want to keep it as stock as possible. One of the parts that's been changed over is the cat back exhaust (which I know because it doesn't fit properly).

I want to swap it over for a stock exhaust but I'm having trouble finding out exactly what the stock exhaust was for my model. I'm fairly certain it was a dual pipe exhaust but haven't been able to find a source online to confirm it.

If anyone can set my mind at ease, that would be great! Thanks!