Here is a oil cap that is chrome and has a metal sticker that reads "supercharged" it has never been used and only took out of box to take pictures. It didnt fit my 03 cobra but seen it fits mustangs from 2005-2009 maybe even 2010. it has a one screw and lock type so check yours to make sure you have this type of screw on cap. here are pictures but can email more. $25 plus shipping.
2010_03140005 - SVT Performance Photo Gallery
2010_03140006 - SVT Performance Photo Gallery
2010_03140007 - SVT Performance Photo Gallery
2010_03140008 - SVT Performance Photo Gallery
2010_03140005 - SVT Performance Photo Gallery
2010_03140006 - SVT Performance Photo Gallery
2010_03140007 - SVT Performance Photo Gallery
2010_03140008 - SVT Performance Photo Gallery