UK Reliability Directory

Subaru Impreza WRX / STI Mk2 (GD/GG)

Production Years: 2001 - 20073 Documented Faults

These are the rally-era Imprezas UK enthusiasts still lust after, but they are now old performance cars that punish poor tuning, neglected servicing and hidden rust. Buy the best-documented car you can find.

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Common Faults & Reliability

These are the most common documented problems for the Subaru Impreza WRX / STI Mk2 (GD/GG), sorted by their typical impact and frequency.

Rear Strut Tower and Sill Corrosion

high severity

Turbo Mk2 cars rust in the same critical places as non-turbo versions, and hidden corrosion can ruin an otherwise desirable WRX or STI shell.

Est. repair cost:£500–£3,000

Detonation and Piston Ringland Damage

high severity

Poor mapping, low-quality fuel or hard use on modified cars can lead to detonation damage and cracked piston ringlands, especially on turbo engines that have been tuned beyond stock.

Est. repair cost:£2,500–£6,000

5-Speed Gearbox and Clutch Wear

high severity

Hard launches and repeated abuse can shorten the life of the WRX 5-speed gearbox and clutch, leading to baulky shifts, bearing noise or gear failure.

Est. repair cost:£700–£2,500

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Example Subaru Impreza WRX / STI Mk2 (GD/GG) Vehicles

Browse real UK-registered Subaru Impreza WRX / STI Mk2 (GD/GG) vehicles. Select any registration for an instant MOT and history check.