you can go single and save alot of money that way too. when you order most catbacks for the AV6, the second can is always another $400 option. i actually like the looks of the dual cans on the accord, but since it isn't a true dual exhaust and just a Y pipe, you can go single without choking up your engine.
i went the comptech route though. the cans were near stock in size, stainless steel, and the tone was great. when swapping from the cat to the back, make sure the diameter of the aftermarket part is greater than the stock piping.