Shakotan Boogie.

シャコタン☆ブギ

Shakotan Boogie (Japanese: シャコタン★ブギ, Hepburn: Shakotan Bugi) is a Japanese manga series written and illustrated by Michiharu Kusunoki. It was serialized in Kodansha's seinen manga magazine Weekly Young Magazine from 1986 to 1996, with its chapters collected in 32 tankōbon volumes. It follows the adventures of two friends interested in shakotan, the Japanese term for lowriders.