Check Infinitiusa.com for a picture of the "sport muffler" they sell for $789. That picture does not look like the hardware in the e-bay ad, or am I missing something? The picture looks like a single muffler with an exhaust pipe coming out of each side of the muffler. I guess that the after market units are closer to the e-bay picture.

 

^ yes, if u look under the car, the stock setup is a single can with two outlets.
These aftermarkets are two cans

 

OP, where are you located? If nothing has changed between the years I have a megan racing axel back you may be interested in. Check it out online and let me know

 

look at the classifieds.
decent exhausts going for 500-800
go with fast intentions if you can!!!
AMAZING!!!