Modified 2005 Subaru Impreza WRX STi offered with extensive engine and suspension upgrades

A heavily modified 2005 Subaru Impreza WRX STi in Platinum Silver Metallic has been offered for sale through a Bring a Trailer listing, presenting a car built for performance rather than originality. The vehicle has covered about 52,000 miles, and the seller is selling on behalf of the current owner, who acquired the car in August 2025. Since then, roughly 500 miles have been added under the current owner's care. The car was modified under previous ownership, and the full extent of that earlier work is not documented in the information available.

The engine has been extensively reworked. It uses an IAG Stage 2 short block with ported and polished heads, Stage 1 GSC camshafts, Ferrea valves and ARP head studs, along with a Cosworth high-flow intake manifold. Forced induction comes from a rotated Garrett GTX 3067r turbocharger feeding a 4-inch intake. Supporting components include an ETS front-mount intercooler, a TiAL 44mm wastegate and an HKS blow-off valve, all of which work together to manage boost and airflow.

Fuelling has been upgraded with dual Walbro 450LPH pumps, 1700cc Injector Dynamics injectors, an Aeromotive A1000 regulator and a Fuelab 6-micron filter. Engine management is handled by AEM MAP and intake temperature sensors running a custom tune. The battery was replaced under the current owner, a routine item that keeps the electrical system dependable for a car of this specification.

Power is delivered through a six-speed manual gearbox with a driver-adjustable centre differential and limited-slip differentials at the front and rear. The clutch is an Exedy Stage 5 triple-disc unit, a choice aimed at handling the increased torque, and the driveshaft is carbon fibre to reduce rotating mass. A Tomei titanium exhaust with a single outlet completes the powertrain changes.

The chassis has been revised with TEIN coilovers, an STi H-brace, a front strut bar and Kartboy end links. The car rides on 18-inch Varrstoen ES2 wheels wrapped in 255/35 Hankook Ventus RS4 tyres, fitted in November 2024. Braking is handled by Brembo four-piston front calipers and two-piston rear calipers, giving the car stopping hardware well beyond the factory setup.

Inside, the cabin retains heated front seats in black and blue cloth, cruise control and automatic climate control. Owner additions include a Pioneer touchscreen stereo, a short-shift kit and WeatherTech mats. Exterior modifications include an aluminium bonnet with a scoop, a sunroof, HID headlights and a rear wing, giving the car a distinctly tuned appearance while keeping its core Impreza layout.

The vehicle history report shows a December 2017 incident described as a very minor rear-end impact at a stoplight. The rear bumper cover was repainted afterwards, but the reason for that repaint is not recorded in the available notes, and no further details of the impact are provided. The car carries a Florida title in the owner's name and includes the owner's manual, which is a useful document for a vehicle with this many aftermarket changes.

Source: bringatrailer.com

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Edward Beaumont

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Edward Beaumont covers public affairs, politics, business, culture and daily news for Nobel. The role focuses on verification, context, and clear explanations for readers.

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