richiedelf

Hi there guys.
I just noticed today, that my exhaust is now only a pipe under my car. It's a 94 WRX. Do you guys have any opinions or recommendations for a new one?
I'm guessing it was the old standard one, it already had a small hole in the center section, but now the box has gone I can see how old and corroded it was. I did kinda like it with the two pipes, more so than the big single ones as it was less obviously a faster type of car, but I'm open to what people are thinking. Also, how much can it help fuel economy and performance?
Thanks peeps.
Richie.