I am not exactly sure, but it is all cosmetic. The instrument cluster is a bit different, with blue-ish back lighting, and you get some aluminum type accents in the interior. On the exterior, the rims and front grill are finished a bit differently. You also get a side vent thingy near the front tires. I have a feeling it is only for the spyder, but I could be wrong. Below are some pics for you to compare with stock.