Normally, only special distribution mii's from Nintendo and such can have gold pants in Streetpass Mii Plaza. You can edit your mii to have gold pants instantly, to appear famous to other streetpassers. This method has been known for a while, but many guides were completely outdated and difficult to manage. JK Save Manager makes everything ten times easier. This guide is a modification of

this thread

EDIT: OUTDATED, USE THIS INSTEAD SpecializeMii

What you need:

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3DS Mii Modifier v1.2

(Thanks to GamerDudeK)

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JK Save Manager

Step 1: Run JK Save Manager (Either from CFW, or Homebrew Launcher is fine)

Step 2: Go to Shared ExtData -> F000000B -> Export Data (Name it anything)

Step 3: Plug your SD into your computer or use an FTP app

Step 4: Run "3DS Mii Modifier.exe"

Step 5: Browse into SD:/JKSM/Shared/F000000B/[NameOfYourBackup]/

Step 6: Choose the file called "CFL_DB.dat"

Step 7: Look on top where it says "Personal Mii", tick the check box that says "Make celebrity/Gold pants"

Step 8: Click on "Save" on the bottom. it will open command prompt, then you'll get a message saying it's done

Step 9: Open JK Save Manager, go to Shared ExtData -> F000000B -> Import Data

Step 10: Open StreetPass Mii Plaza

Step 11: Click on your Mii, choose "Mii Settings" then "Change Mii"

Step 12: Choose your primary Mii

Done, your Mii will have gold pants now!