I have a Greddy PE catback exhaust...
It has a distinctive low & deep sound (unlike other fartpipes and N1-style exhausts) but, the muffler sits low. (I can hear it scrape during heavy snowfall.)
I'm sorry, I'm unsure if it will fit EG sedans...
I suggest that you actually check out the exhaust pipe layout to determine if you should return it or do some custom work.