Hiroya Okuyama

Hiroya Okuyama (奥山 広也 "Okuyama Hiroya") - is an auto mechanic who runs a auto shop called "Spiral Zero", located in Odawara and named after a street racing team he used to be in charge of.

Biography
Okuyama is respected by Aiba as the man who helped him make his breakthrough. Through his introduction, Okuyama meets Kanata and Ogata, and starts tuning the 86 in the second round. His plan is to upgrade the suspension firstly, and then work on strengthening the engine. After the second round, he fits the 86 with a turbo kit.

Kanata's mentor, Takumi Fujiwara, defeated him badly when he was a racer, and he holds him in high esteem, saying, "There is no racer of that generation in the northern Kanto region who doesn't know him".

Trivia

 * Aiba's GT-R is tuned in Okuyama's auto shop.
 * Okuyama first appears in author's previous manga about street racing, Initial D. He drove a S15 Silvia.