Basic information and history

The Subaru Impreza WRX STi is among the cars that defined an entire generation of enthusiasts. With its roots in the world of rallying, where Subaru, with drivers like Petter Solberg, took WRC titles in the early 2000s, the STi version was built around a turbocharged four-cylinder boxer engine, a six-speed manual gearbox, and symmetrical all-wheel drive. This generation is characterised by the driver-controlled centre differential DCCD, Brembo brakes all round, and an interior featuring Alcantara and STi details. In the UK, where this car originates from, the STi was one of the most popular performance cars on the market and the foundation for a large aftermarket and tuning culture.

This example is a 2005 Subaru Impreza WRX STi, imported from England and therefore never sold new in Sweden. The seller refers to the car as a Hawkeye STi in the project thread on Scoobynet that documents the build. The odometer reading is stated as 15,500 km, and the seller states that this can be warranted. The car has had a total of ten owners. There are no loans on the vehicle and no deductible VAT.

The car is far from a standard STi. In 2013, a fully forged engine was built by Alan Jeffrey at Enginetuner in the UK, and since then the car has been continuously developed with extensive modifications to the engine, drivetrain, chassis, brakes, and exterior. The entire project is documented in a thread on Scoobynet, which provides an unusually thorough insight into the car's history.

Equipment and options

• Six-speed manual gearbox
• DCCD, electronically adjustable centre differential with seven settings
• Brembo four-piston calipers at the front
• Original STi interior in blue Alcantara and black fabric
• Climate control
• Upgraded sound system

The car is extensively modified, and the seller has provided a detailed specification.

Engine and drivetrain

• Fully forged engine built in 2013 by Alan Jeffrey at Enginetuner in the UK
• Syvecs ECU
• Wiseco 100 mm pistons with an 8.5:1 compression ratio
• ZRP I-beam connecting rods
• ACL Race bearings
• RCM oil pump and RCM fuel pump
• ARP bolts
• Blouch Performance Turbo Dominator 3.5XT-R, a dual ball-bearing billet turbo with integrated wastegate, rated at 580 hp. Repackaged by Scooby Clinic under the name SC50, based on Garrett's honeycomb design with BPT's own compressor housing. Disassembled and inspected by GIK Turbo in 2021
• Perrin front-mount intercooler with a 3-inch piping kit
• Equal-length header, fitted September 2025
• 1000 cc injectors
• Competition Clutch twin-plate clutch
• Air intake temperature sensor
• Perrin air filter
• Cosworth oil pan with baffle
• Milltek 3-inch full system
• Kartboy short shifter with bushing kit, fitted August 2021

Interior and multimedia

• Three Defi gauges for oil pressure, oil temperature, and boost pressure, with control unit in a recessed compartment
• Hertz DSK 130.3 5.25-inch speaker set in the front doors (2020)
• Four GAS coaxial speakers in the rear doors (2020)
• Hertz DBX 12-inch subwoofer at 1,000 W in the boot (2020)

Chassis

• Whiteline anti-roll bars front and rear
• Polyurethane bushings all round
• BC Racing coilovers, adjustable for height, stiffness, and camber

Wheels, tyres and brakes

• Speedline Turini 18x8.5-inch in gunmetal grey with spacers all round
• Goodyear Eagle F1 UHP SuperSport, fitted July 2024, with good tread depth according to the seller
• Hawk DTC-30 brake pads all round
• Floating brake discs at the front in original size for the Brembo four-piston calipers
• EBC stainless steel braided brake hoses (July 2021)
• Motul RBF 600 brake fluid (July 2021)

Exterior

• Rear diffuser from Spec-C
• Front-mounted splitter
• Zunsport front grille

Condition

Both the paint and bodywork are described by the seller as being in excellent condition, and the same goes for the glass. Exteriorly, the car clearly bears the marks of its build with the Spec-C diffuser, front splitter, and Zunsport grille, but the bodywork itself is stated to be in very fine condition.

The interior is the original STi upholstery in blue Alcantara and black fabric, which according to the seller is intact and clean and in excellent condition. The dashboard and headliner are in good condition. The sound and media system works, as does the climate control, trip meter, and all seatbelts. The dashboard is free of warning lights. One known fault is present in the aftermarket gauge setup: the boost pressure gauge and oil pressure gauge in the Defi set are currently not working.

Tyres and wheels are in good condition. Goodyear Eagle F1 UHP SuperSport tyres were fitted in July 2024 and, according to the seller, still have good tread remaining. The brakes, with Hawk DTC-30 pads and floating front discs, are also assessed to be in good condition.

Mechanically, the engine is stated to be in good condition and starts and runs faultlessly according to the seller. The gearbox is in good condition, shifts flawlessly, and the clutch works as it should. The car is drivable as is and has passed inspection. The most recent inspection was carried out on 27 September 2025.

Service history

The seller states that the car is fully serviced. However, receipts and consolidated documentation supporting the service history are missing. The seller has, however, specified a number of recently performed works: the timing belt, engine oil, and header were replaced in September 2025, the water pump was replaced in August 2021, and the brake hoses and brake fluid were renewed in July 2021. The turbo was disassembled and inspected by GIK Turbo in 2021. The 2013 engine build and the car's continued development are documented in the seller's project thread on Scoobynet, giving the buyer the opportunity to follow the car's history in detail.

Summary

This 2005 Subaru Impreza WRX STi is a thoroughly executed enthusiast build with a fully forged engine from Enginetuner, Syvecs engine management, a Blouch turbo rated at 580 hp, and a complete upgraded chassis with BC Racing coilovers and Whiteline anti-roll bars. The car is imported from England, has had ten owners, and shows 15,500 km on the odometer, a reading which the seller states can be warranted. The paint, bodywork, and interior are described as being in excellent condition, while the engine, gearbox, and brakes are in good condition. Recently performed works include the timing belt, oil, and header in September 2025, and the car passed inspection as recently as the same month. The two non-functioning Defi gauges are the only issue highlighted by the seller. Written service documentation is lacking, but the build is well documented in a public project thread. An STi for those seeking a ready-built, powerful, and well-specified car with a clear British tuning history.