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Varis Tuning Shop Tour - JDM Perfection

One of the world's most influential aero manufacturers

Scott Tsuneishi
Apr 28, 2014
Photographer: Daniel Olivares

Nestled deep within the suburbs of Kanagawa, Japan, rests a piece of automotive history that has withstood the test of time since the '70s. Perhaps you've heard of this company that specializes in aero parts from reading Japanese tuner magazines or even owning one of these kits on your ride. The JDM manufacturer goes by the name Varis, and for one day, we stepped foot inside their facility for a special sneak peek into how this company has grown into one of the most influential aero manufacturers in Japan.

Varis tuning tools 02 Photo 2/39   |   Varis Tuning Shop Tour - JDM Perfection

Years before the name Varis became synonymous with hard-core performance and aero tuning, company founder Mikio Yahagi worked as a subcontractor, designing body parts for small boats and various industrial goods. Back in 1975 when the JDM company first began, aero parts were not popular in the car customizing business so Yahagi-san resorted to making just about anything and everything to make an honest living.

As the automotive performance industry slowly evolved, so did Varis. Yahagi-san was passionate about cars from an early age with motorsports in particular. The JDM company slowly began receiving contract work to design prototype body parts for numerous automotive manufacturers. Then, in 1989, the company saw a rapid boost in popularity thanks to the Nissan boom and debut of the R32 GT-R, Sylvias, and 180SX. Within a six-year span and the debut of the ECR33 Skyline, the company decided to develop their first Nissan body kit known as the "Varis" brand and the rest was history.

Varis tuning tools R32 GTR skyline 03 Photo 6/39   |   Varis Tuning Tools R32 GTR Skyline 03

JDM race teams in the N1, Taikyu, and Super GT race series caught wind of this small but reputable shop and knew they needed to hire their expertise. Companies were clawing at the doors of Varis to design custom race parts for their vehicles, but throughout the chaos Yahagi-san never lost focus of his true passion: designing aero kits for commuter cars including hundreds of manufacturers and brands, ranging from the Evo, STI, S2000, Celica, and even BMW.

Road to Success

It's often said that the path well traveled is the easiest way to obtain success. For Yahagi-san and his company, they didn't have the luxury of taking the path of least resistance when they first opened their doors in the '70s.

Varis tuning CF shaping 15 Photo 10/39   |   Varis Tuning Shop Tour - JDM Perfection
Varis tuning carbon fiber 16 Photo 11/39   |   Varis Tuning Shop Tour - JDM Perfection

We had a chance to sit down with Yahagi-san's older son Naohiro, who now resides as president of Varis, for a candid interview on what makes the company so unique. "In order to make better products, we tried using many kinds of fiberglass and resin material. We achieved some success, but for the majority of the time, we failed. Throughout the years of trials and tribulation, we've made and continue to make prototype kits for Japan's largest automotive manufacturers. The level of accuracy and perfection to produce these items was painstaking but humbling as we learned masterful techniques to deliver dimensional accuracy in every part we made.

"We at Varis are always looking for that perfect balance between street concept aero products and race parts. There needs to be a balance between form and function, and that's something we decide with our subjective eyes. If we focus on the function portion of aero too much, the overall shape and design becomes worse, while on the flip side, if it's designed with too much form, there's no aero advantage to what we built. We have three criteria when developing products: downforce, weight, and high rigidity. It's important to design functional parts for cars, not based purely on decoration," he says.

Varis takes pride in their aero kits and the manufacturing method for every JDM kit on the market you see today is handmade, not machinery, and all done in-house. "From the design concepts to shaping the clay molds, to cutting pieces, it's a technique that has transcended from my father to my brother Tadao [head of planning and communications] and I. It might sound unusual but when we design a kit, the shapes and images all begin with a simple thought process. I simply detail everything in my head to our skilled staffs, and we begin work. I don't draw up a sketch for development. Designing the image in my head progresses the work faster than drawing up a sketch on a paper," he says.

Varis tuning ishikawa ink 10 Photo 21/39   |   Varis Tuning Shop Tour - JDM Perfection

Behind the Build

2009 varis Z34 fairlady 370Z varis arising II aero kit 22 Photo 22/39   |   Varis Tuning Shop Tour - JDM Perfection

Tadao Yahagi

Build Time.
5 years


Starbucks coffee, Cars, DVD collecting

Previously Owned vehicles.
Supra Mark II; Toyota MR-Sl Evo VIII MR (CT9A); Evo IX Wagon; EVo X; Fairlady Z34

"To build a reliable, yet fun, daily driver that's also our company demo car."

2009 Varis Z34 Fairlady 370Z

2009 varis Z34 fairlady 370Z varis arising II aero kit 23 Photo 26/39   |   Varis Tuning Shop Tour - JDM Perfection

Output: 346 ps at 7,000 rpm / 45.2 kgm at 5,500 rpm

Engine VQ37VHR; Blitz Advance Power Air Cleaner; Amuse STTI exhaust, headers

Suspension Acre Street Spec coilovers (14kg front/12kg rear), pillowball camber plates

Brakes Original Runduce brake kit eight-pot front brake calipers, six-pot rear calipers, street pads front/rear, steel braided brake lines front/rear, Dixel racing brake fluid

Wheels/Tires Front: 20x10 +30 with -5mm spacer Rays Volk Racing G25 and 275/30-20 Bridgestone Potenza S001; rear: 20x10.5 +22 with +15mm spacer Rays Volk Racing G25 and 285/30-20 Bridgestone Potenza S001

Exterior Varis Arising II aero kit; carbon-fiber front lip; carbon-fiber side skirts; Hyper Narrow 1,360mm GT wing/carbon-fiber wing base; fenders with carbon lower fins, cooling bonnet hood, original graphics

Interior Recaro RS-G seats

2009 varis Z34 fairlady 370Z rear diffuser 24 Photo 30/39   |   Varis Tuning Shop Tour - JDM Perfection

Electronics Blitz Touch B.R.A.I.N

Gratitude "My Varis family, Rays Engineering, Acre, Original Runduce, Amuse, Bridgestone, and Recaro"

HKS Technical Factory

2007 HKS TF R35 GTR varis GT R 13 aero kit 29 Photo 31/39   |   Varis Tuning Shop Tour - JDM Perfection

Build Time.
5 years


Building Cars

Previously Owned vehicles.
Fairlady Z33 MT and AT; Vq35-Powered Skyline Coupe; BNR34 GT-R; Toyota FT-86

"Car was built primarily as a demo car to test products and run at numerous time attack events."

2007 HKS TF R35 GT-R

2007 HKS TF R35 GTR varis GT R 13 aero kit 34 Photo 35/39   |   2007 HKS TF R35 GTR Varis GT R 13 Aero Kit 34

Output: 620 ps at 7,120 rpm / 85 kgm at 5,800 rpm (dyno tuned by Hideyuki Naka)

Engine VR38DETT (2011); HKS GT600, Racing Suction intake, twin-fuel pump, fuel pressure regulator, 850cc injectors, Superior Spec R Titanium exhaust, front pipe/center pipe; Racing Fire M45HL spark plugs, Super SQV blow-off valve, upgraded wastegate actuator, R-Type intercooler, aluminum charge pipe kit, oil filter, DCTF-II oil cooler kit; Racing Pro 15w-50; HPI radiator hoses; carbon fiber surge tank cover; Cobb Access port

Suspension HKS Max 4 GT Sports coilovers (16kg front/12kg rear), pillowball camber plates

2007 HKS TF R35 GTR VR38DETT 30 Photo 36/39   |   Varis Tuning Shop Tour - JDM Perfection

Brakes Endless monoblock six-pot front brake calipers, steel braided brake lines front/rear, Spec-V rear calipers, PFC Racing pads front/rear, HKS F706 racing brake fluid

Wheels/Tires front: 20x10.5 +24 Yokohama Advan GT and 285/35-20 Dunlop Sport Maxx GT600; rear: 20x11 +5 Yokohama Advan GT and 285/35-20 Dunlop Sport Maxx GT600

Exterior Varis GT-R '13 aero kit, front/rear bumper, front diffuser, carbon-fiber front lip, front bumper grille cover, front fender garnish, carbon-fiber side skirts with louvers, rear under-skirt, Euro Edition GT wing/carbon-fiber wing base, fenders with carbon lower fins, cooling bonnet hood, carbon trunk, original graphics

Interior Recaro TS-G seats; Willans four-point harnesses, RSW gauge cluster

Electronics HKS EVC 6, AFK knock amp, Circuit Attack counter

Gratitude "Special thanks to all the HKS Technical Factory staff who contributed to building this otherwise stock engine R35 with bolt-ons that delivers an impressive 650 ps."


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