Intro

The Toyota Celica GT-FOUR ST205 represents the pinnacle of Toyota’s rally-bred engineering from the 1990s. Developed specifically for World Rally Championship (WRC) homologation, this third-generation GT-FOUR debuted in 1994 and quickly established itself as one of Japan’s most formidable performance machines of its era.

In JDM culture, the ST205 holds legendary status as one of the “holy trinity” of Japanese AWD turbo cars alongside the Subaru Impreza WRX STI and Mitsubishi Lancer Evolution. What separates the GT-FOUR is its comparative rarity and the technological sophistication it brought to the table, featuring advanced systems like an adjustable rear wing, water-to-air intercooler spray, and sophisticated all-wheel-drive with viscous limited-slip differentials.

This particular build stands out for maintaining period-correct modifications while incorporating subtle modern enhancements that honor the vehicle’s rally heritage. Unlike many heavily modified examples, this ST205 preserves the delicate balance between authentic JDM tuning philosophy and the engineering integrity that made these machines special in their heyday.

Builder Profile

Takumi Nakagawa, a 34-year-old aerospace engineer based in Portland, Oregon, acquired his ST205 Celica GT-FOUR in 2015 after years of searching for a clean example. Born in Nagoya, Japan, and immigrating to the United States during his college years, Takumi brings a distinctive Japanese tuning philosophy to the American rally scene.

His approach to building combines precision engineering with rally functionality—enhancing performance while maintaining the car’s original character. Takumi’s background in fluid dynamics has informed his meticulous attention to cooling systems and aerodynamic modifications, resulting in a Celica that performs exceptionally on both backroads and rally stages.

Well-respected in the Pacific Northwest rally community, Takumi volunteers as a technical inspector for local rallycross events and maintains a popular build thread on the CelicaTech forums. His ST205 serves as both his weekend warrior and occasional competitive vehicle in the Oregon Trail Rally amateur division.

Why We Love It

The ST205 Celica GT-FOUR represents Toyota’s final, most refined expression of what a homologation special should be. While its predecessors established the nameplate in WRC, this third-generation variant emerged as the technological apex—a 2090kg curb weight masterfully controlled by a sophisticated mechanical symphony.

Its characteristically aggressive silhouette is punctuated by functional aerodynamics that weren’t merely cosmetic additions. The aluminum hood with its prominent bulge accommodates the top-mount intercooler beneath, while the widened fenders house a track width worthy of its rallying pedigree. The iconic “high-rise” rear wing isn’t theatrical posturing; it’s calculated downforce engineering.

Behind the wheel, the 3S-GTE in its Group A-inspired form delivers 252bhp through a drivetrain that doesn’t merely distribute power but orchestrates it. The Super-Strut suspension geometry—reducing torque steer while preserving steering feel—demonstrates Toyota’s obsession with driver connection during a period when Japanese engineering reached its experimental zenith.

What resonates most is how the ST205 captures a moment before electronic intervention became ubiquitous. Its hydraulic steering communicates with unflinching honesty. The turbo lag isn’t a flaw but a character trait—a momentary tension before the torque delivers its crescendo above 3,500rpm.

In an era of increasingly homogenized performance cars, the ST205’s mechanical distinctiveness and competition-derived personality represent the philosophical endpoint of an engineering approach we may never witness again.

Mods

ENGINE & DRIVETRAIN

• HKS GT2835R turbocharger upgrade
• HKS stainless steel exhaust manifold
• GReddy front-mount intercooler
• ARC titanium cat-back exhaust
• TRUST oil cooler kit
• Blitz blow-off valve
• NGK racing spark plugs
• SARD 550cc fuel injectors
• HKS cam gears
• TRD limited-slip differential
• Exedy Hyper Single clutch kit

SUSPENSION & BRAKES

• TEIN Super Street coilovers
• Cusco front/rear anti-roll bars
• Cusco front strut tower bar
• APEX-i N1 damper kit
• Brembo 4-pot front calipers
• Project μ brake pads
• Goodridge stainless steel brake lines
• TRD lower chassis brace kit
• Cusco rear member collar

WHEELS & TIRES

• RAYS Volk Racing TE37 18×8.5J +35
• Yokohama ADVAN Neova AD08R 235/40R18
• Project KICS R40 wheel nuts
• RAYS valve stems
• H&R 15mm wheel spacers (rear)

EXTERIOR / AERO

• TRD WRC-style front lip
• Ganador Super Mirrors
• C-One carbon fiber hood
• SARD GT wing (adjustable)
• PIAA HID conversion headlights
• TRD smoked side markers
• Craft Square carbon fiber side skirts
• J-Blood rear diffuser
• TRD tow hooks

INTERIOR

• BRIDE Zeta III driver seat
• BRIDE Brix passenger seat
• TAKATA 4-point harnesses
• MOMO steering wheel with quick-release hub
• HKS shift knob
• ARC titanium shift pattern plate
• Cusco 6-point roll cage
• Defi gauges (boost, oil temp, water temp)
• Nardi carbon fiber dash trim
• TRD floor mats

ELECTRONICS / ECU

• APEXi Power FC engine management
• HKS EVC boost controller
• GReddy Profec B electronic boost gauge
• Alpine head unit with Carrozzeria speakers
• Blitz turbo timer
• A’PEXi Rev/Speed meter
• Defi Link display system
• Kenwood amplifier with JL Audio subwoofer
• HKS Circuit Attack Counter lap timer

Driving Impression / Build Philosophy

The modifications on this ST205 Celica GT-FOUR create a harmonious balance between street usability and track capability. The combination of the reinforced chassis with the Cusco roll cage, Tein coilovers, and upgraded sway bars delivers precise handling without sacrificing daily drivability. Power enhancements through the HKS turbocharger and exhaust system complement rather than overwhelm the chassis setup, maintaining Toyota’s original all-wheel-drive balance.

This build follows a clear time attack philosophy with street sensibilities. The Bride seats and steering wheel modifications create a focused cockpit, while the upgraded AP Racing brakes guarantee reliable stopping power for both track days and spirited mountain runs. The exterior modifications—widened fenders, TRD front bumper, and carbon fiber hood—serve functional purposes for cooling and weight reduction while enhancing the car’s visual presence.

Unlike pure show cars, every modification serves a performance purpose, yet unlike dedicated competition vehicles, comfort hasn’t been completely relinquished. The build represents a thoughtful evolution of Toyota’s homologation special, respecting its rally heritage while updating it for modern performance standards.

FAQ

How reliable is the Toyota Celica GT-FOUR ST205?

The ST205 Celica GT-FOUR is generally considered very reliable when properly maintained. Its 3S-GTE engine is robust and can last well over 200,000 miles with regular service. Timing belt changes every 60,000 miles and regular oil changes are essential to maintain reliability. Many examples are still running strong after 25+ years.

What is the tuning potential of the ST205 Celica?

The 3S-GTE engine responds exceptionally well to modifications. Stage 1 tuning with intake, exhaust, and ECU adjustments can yield 260-280hp. More aggressive builds with larger turbochargers and supporting modifications can safely achieve 350-400hp, while fully built engines can exceed 500hp with the proper supporting components.

What are the common issues with the Celica GT-FOUR ST205?

Common problems include failing lift bolts in the anti-lag system, oil leaks from the cam seals, failing turbo actuators, and worn synchromesh in the gearbox. The factory ceramic turbo is also prone to failure at higher mileage. Import examples may have rust issues around the rear arches and sunroof drains.

What are the best modifications for the ST205?

The most effective modifications include: ECU reflash or standalone management, upgraded intercooler, 3-inch exhaust system, aftermarket turbocharger (TD05 or GT28 series), and improved wastegate actuator. For handling, coilover suspension, polyurethane bushings, and chassis bracing provide the best returns on investment.

What’s the ownership experience like for a Celica GT-FOUR ST205?

Ownership is rewarding but can be demanding. Parts availability is becoming more limited, though aftermarket and specialist support remains strong. Fuel economy is poor by modern standards (18-22 MPG), and maintenance costs are higher than regular Celicas. However, the driving experience, rallying heritage, and appreciation potential make it worthwhile for enthusiasts.

How does the ST205 compare to its rivals like the Lancer Evolution and Impreza WRX?

The ST205 offers more comfort and refinement than contemporary Evolutions and early WRXs. It’s slightly heavier with less aggressive throttle response but provides better daily drivability. The Super Strut suspension delivers excellent handling characteristics, though outright performance is slightly behind the Mitsubishi and Subaru in stock form.

Is the Celica GT-FOUR ST205 likely to appreciate in value?

Yes, well-maintained examples have shown steady appreciation over the past decade. As a homologation special with rally heritage and limited production numbers, the ST205 has become increasingly collectible. Original, unmodified examples command premium prices, but even tastefully modified cars are seeing value growth as the import performance car market strengthens.

Conclusion

The 2003 Toyota Celica GT-FOUR ST205 stands as a showcase to an era when rally-bred engineering shaped production cars. Its turbocharged power, sophisticated all-wheel-drive system, and purpose-built performance modifications represent Japanese automotive engineering at its finest. Despite being nearly two decades old, the ST205 remains highly relevant in today’s automotive landscape where analog driving experiences and mechanical purity are increasingly valued.

The GT-FOUR has cemented its place in the pantheon of JDM legends alongside the Lancer Evolution, Impreza WRX, and Skyline GT-R. Its limited production numbers and competition heritage have only enhanced its desirability among collectors and enthusiasts. As modern vehicles trend toward electrification and driving assistance, the raw, tactile experience offered by the Celica GT-FOUR becomes ever more special.

For JDM enthusiasts, the ST205 represents the perfect convergence of motorsport pedigree, distinctive styling, and the tuning potential that defines Japanese performance culture. Its continued appreciation in value and presence at enthusiast gatherings worldwide prove that the Celica GT-FOUR’s legacy extends far beyond its production years, inspiring a new generation of enthusiasts discovering the golden age of Japanese performance cars.