hi, ive read the forums but am still confused on the best way to change the tips for the x5 3.0 w. sports package (2002),

i was looking at these on ebay:

BMW X5 Exhaust Tips Stainless Steel 01 02 03 04 05 06:eBay Motors (item 400071634835 end time Oct-05-09 11:59:43 PDT)

Would these look cheap? do i need to cut the old tips off? does this make sense to do? what are my options. thankss