I decided to save some $ and get an after market spoiler for my new 6. The girl at the car dealer said they use this one guy (Athough she works at Saturn and not the Mazda part) and he can put on a spoiler for $300 total. When I talked to him he said it is not an official Mazda part but its the same thing. Are all spoilers pretty much the same for the 6? Is one better than the next? Or should I demand and pay for a Mazda approved one? And what is a good cost for someone to put one on?