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The Red Dragon: Daijiro Yoshihara’s Discount Tire/Falken Tire S13
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The Red Dragon: Daijiro Yoshihara’s Discount Tire/Falken Tire S13Inside the car, the interior is all business. The roll cage has been updated by SPD Metal Works to comply with the latest safety requirements and is reinforced to ensure maximum safety of Yoshihara in the event of a collision. A pair of Sparco seats and harnesses keep both driver and a potential passenger in one place at all times, while Yoshihara’s inputs are handled thru the Nardi steering wheel. Outside of the Pride Performance Carbon dash, custom switch panel between the seats to handle ignition and other duties and the Motec dash display, the interior is void of most creature comforts normally found in an everyday street car.

The magic of this car comes together through the suspension, namely with the tuning of Falken suspension aficionado Mike Kojima. Each corner sits on a set of KW Coilovers with custom spring rates and valving designed to maximize squatting under acceleration but stabilize the car once it’s pitched sideways. A combination of Nagisa lower control arms, SPL tension rods and rear control arms, and custom spindles provides the combination of adjustment to fine tune the caster, camber, and toe to the precise settings of Master Kojima to maximize the grip out of the Falken 615K tires. At each track, the car is dialed in for the type of track surface and judging requirements that have been set forth by Formula D staff. While we’d love to give you the specific settings Yoshihara uses at each track, we’d then have to kill you to prevent the information from getting back to other Formula D teams.

The latest makeover of the exterior of the car is definitely the most attractive. Drifting fanboys flock to the 6666 Customs Rocket Bunny bodykit, which is incredibly difficult to find here in the US. Yoshihara has always been partial to the dual-brick projectors from the S13, and this year’s look integrates custom smoked headlight covers into the front end. SPD modified the hood to integrate a hood scoop in an effort to keep the engine bay cool, fiberglass doors replace the OEM steel units to save weight, and an APR front splitter and rear spoiler endplates help stabilize the car at high speeds. The entire car features a custom graphics package which stays true to the original Rocket Bunny liveries that have become the staple of the brand. Finishing out the look, a set of 18” Yoshihara Design D59F wheels are the first wheel of Yoshihara’s signature brand, set to be released to the public later this year.

The Red Dragon: Daijiro Yoshihara’s Discount Tire/Falken Tire S13

Last season, Yoshihara piloted the car to two wins in Atlanta and New Jersey as well as a second place finish in Vegas on his way to a fourth place overall finish. While many would be happy with that, the team is aiming for a season championship with the car, knowing that all pieces to the puzzle are there to make it happen. Yoshihara has finished in the top five of the championship in six out of seven Formula D seasons, proving he’s one of the best on the grid.


Vehicle: 1989 S13 Coupe chassis

Owner: Falken Tire Corp

Location: Anahiem, CA

Engine: GM LS7 Engine

Club Affiliation: Falken Tire & Discount Tire

Engine Modifications:

Motor built and tuned by Redline Performance

Fast X intake manifold

102mm billet throttle body

Aeromotive fuel pump and fuel rails

Stainless Steel braided fuel, brake,
and power steering lines

Custom K&N filter

Custom SPD Metalworks Headers

Custom 5” SPD Metalworks oval Exhaust

Motec MLS engine management

Griffin Dual-Pass Radiator

McLeod Twin-Disc Clutch

G-Force GSR Transmission

Winters Quick-Change Diffferential

Canton Accusump oiling system


Custom SPD Metalworks Formula D-spec roll cage

Sparco Corsa Drivers Seat

Sparco Evo Passenger Seat

Sparco 5-point harness

Nardi steering wheel

Custom SPD Metalworks switch panel center console

Wheels & Tires & Brakes:

18” Yoshihara Design D59F wheels

245 / 35 / 18 Falken Azenis 615K Tires Front

275 / 35 / 18 Falken Azenis 615K Tires Rear

Wilwood front and rear calipers

SPD Metalworks Hydraulic E-brake kit w/

Wilwood Caliper


KW V3 Coilovers

Nagisa Front Lower Control Arms

SPL Tension Rods

Battle Version Rear Control Arms by PDM Racing

Spherical bearings replace all rubber bushings


6666 Custom rocket bunny body kit
including rear spoiler

SPD Custom S13 Hood

Fiberglass doors

Lexan Windows

Red / Clear rear taillights

OEM S13 Silvia dual brick headlights

Custom black-out Silvia headlight covers

APR Front Splitter

Custom Race Design RB-inspired graphics

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