I really would think ""NOT""
You can probably get a lot of things you want from your Ford dealer but you will need a whole lot of $$$$$$.
You have the Mustang so I think your best bet is to go through the American Muscle catalog and look on E-Bay and other vendors to see what you would like to have to get the car "Your way".
If you decide on getting stripes and don't want to put them on your self just find a good Window tint installer that can do it for you. Most things you can install your self such as Mufflers and Cold air intakes.
The great thing about a Mustang is that there are a whole lot of aftermarket as well as Ford Racing parts you can buy to get it the way you want it.
2012-candy red- V-6 MCA, Automatic Trans. CFM Valve cover breather. MMD blackTail light trim.Magnaflow axle back street mufflers, JLT oil catch can.MMD hood struts.
Airaid Cold Air intake. red caliper covers, 3.7L performance engine cover, Flat black hood spears.Boss 302 strut brace, CDC rear panel, Trunk Cargo net,--Dash carpet cover,
Viser stickers to cover ugly yellow warning crap,Aluminum driveshafft and Swarr Bar.