Where can I buy the following accessories for my [DSM]?

or any other appearance item

With so many companies offering to part you from your money for these accessories, I sincerely hope you don't need to ask this question. Hundreds of shops sell these types of accessories world-wide. Start with your local Yellow Pages. Failing that, a quick web search would have netted you the following manufacturing companies:

• G.T. Styling - headlight/taillight covers, sunshades, etc.
• Wings West - body kits, spoilers, etc.
• Squidskins (Canada) - hoods and parts for DSM and motorcycle.
• Aero FX - spoilers, wings, rims, etc.
• Factory Wings
• Sportwing
• Wholesales Hyperformance - body kits
• FX Designs
• Taboo Speed Shop
• On-Der-Ground Designs
• Spoilers-4-Less

There are dozens of other manufacturers, and thousands of retailers. Look around!