Drift Stickers, known in JDM culture as "Tomodachi Stickers" (Translates to Friend Stickers) Have been around as long as car clubs in Japan. Basically, drift clubs in Japan tradt stickers with other clubs and friends and plaster their cars with them. To the trained eye, what looks like a bunch of random stickers actually tells quite a story. The stickers are popular from amatuer to Pro level, if you look closely at a D1 car at the next event there is a good chance you will be able to learn abit about the drivers history on the streets.
