After his retirement, he remained in racing and is now an Official D1 Grand Prix Judge and was Team Director for both GT500 (for one year) and GT300 Class of ARTA JGTC Team until the team disbanded their GT300 operation at the end of the 2005 season. He owned the aftermarket suspension company Kei Office until he sold the business in 2005. His trademark color is Jade Green, which appears on his overall, helmet and is the adopted color of the company he used to own, Kei Office. Also was the color of the D1 Grand Prix Kei Office S15 Silvia of driver and employee Yasuyuki Kazama who also wears a suit similar in pattern. On Initial D 3rd Stage the color can also be seen on a sportsbike rider overall and helmet who overtook Takumi as he was en-route to an initiation battle with Ryosuke Takahashi. The color of Tomo's racing suit from Initial D 4th Stage is also jade green, and in similar pattern to his suit. Lastly Keiichi himself is featured in one episode of Initial D right before the battle with Ryosuke Takahashi, when he calls Bunta (Takumi's father) to inquire about the young man. Here his body is shown wearing this design of race suit, however his face or helmet is not. He also hosts the video magazine "Best Motoring", which features road-tests of new Japanese cars, including a special section called "Hot Version", which focuses on performance modified cars. He is a guest presenter in Video Option, a monthly video magazine, similar to Hot GIRL Version, which also regularly covers the D1GP and sister video magazine Drift Tengoku which deals purely with drifting. He has been an editorial supervisor on the televised anime Initial D and Wangan Midnight. He appeared in episode 23 of Initial D First Stage as a special guest. He also appeared in the semi biographical film Shuto Kousoku Trial 2,3,4,5 and Max and also presents in the Super GT magazine show in Japan. His life in driving has parallelism to the Initial D main character, Takumi, as both of them started out to explore their local touge while doing regular deliveries for their family business. On Initial D 1st stage, episode 23 he was hinted at whilst Takumi's father was having a conversation on the phone with an anonymous person referred to as "Mr. Tsuchiya". "Mr Tsuchiya" addressed Takumi's father as "Bunta", adding that the memories of his drifting still "scared the shit" out of him. Also he made an appearance opposite Top Gear's Jeremy Clarkson in a Motorworld in Japan special showing drifting competition in the late 1980s in Japan. After 1995, sometimes he appears as a Formula One guest commentator in Japanese Fuji TV. Though his reputation was bad at first, it is acknowledged in his comment with a peculiar cut today. He owns a new suspension company, after Kei-Office, dubbed DG5. In 2006, he made a cameo as a fisherman in the movie The Fast and the Furious: Tokyo Drift in which he was also stunt-coordinator and stunt man. Although he only had one line, it is considered to be an inside joke to the drift racing community.