They are different m8, The factory fit chrome tailpipe is more rounded than the OEM tailpipe which gives it a slighty more sporty look. But at least you wont have to cut the beveled edge off the exhaust like I had to on my wifes MO
Also cooper exhaust is slightly bigger so the OEM tailpipes are different sizes and you cant buy the stock cooper beer can style exhaust trim. I managed to get one on ebay and realized it was slightly too big, but with some internal modifaction (bending
) now fits snuggly.