is a Japanese professional drifting driver, who competes in the D1 Grand Prix series for Dunlop Tyres and Koguchi Power.

Like many of the other D1 drivers, Koguchi owns his own tuning garage called Koguchi Power. Yoshinori does all of the work on his car himself. He has a following of Nissan 180SX enthusiasts as he is one of the top 180SX drivers, also his car is the same one that he started out in. His car uses mostly off the shelf parts. His nickname is 'Emperor'.

Koguchi has been competing in D1 since it began in 2001 and scored points in his Nissan 180SX in the first three seasons. He then switched to a Nissan Silvia S15 sponsored by tuning firm High Power Improvement, he did not do well in the car or the Toyota Chaser he used after. So in 2007, he changed back to his 180SX and has done well. Usually if he makes it into the top 16 he will score big points, gaining his first win in round 2 of the 2008 season.

Drifting results

D1 Grand Prix Year Entrant Car 1 2 3 4 5 6 7 8 Position Points Koguchi Power Nissan 180SX RPS13 EBS8 NIK BHHTAN EBSTAN NIK8 16 12 Koguchi Power Nissan 180SX RPS13 BHHTAN EBSTAN SGOTAN TKBTAN EBS8 SEKDNQ NIK5 17 18 Koguchi Power Nissan 180SX RPS13 TKBTAN BHHTAN SGOTAN FUJDNQ EBS9 SEK TKBDNQ 22 4 HPI Nissan 180SX RPS13 IRWTAN - 0 Nissan Silvia S15 SGO16 EBSTAN APSDNQ ODBDNQ EBSDNQ TKBDNQ HPI Nissan Silvia S15 IRWTAN ODBDNQ SGODNQ APSDNQ EBSDNQ FUJDNQ TKBDNQ - 0 Toyota Chaser JZX100 IRWTAN SGODNQ FUJDNQ APSTAN EBSDNQ SUZDNQ FUJDNQ IRWTAN - 0 Koguchi Power Nissan 180SX RPS13 EBSDNQ FUJ5 SUZ SGOTAN EBSDNQ APSDNQ FUJ2 10 31 Dunlop Tyres Nissan 180SX RPS13 EBSTAN FUJ1 SUZTAN OKY8 APS16 EBSFUJ5 11 50

Sources D1 Grand Prix