We recommend servicing the valve every 3 years or every 20,000 miles – whichever comes first.
Aluminium recirculating valve for Subaru Impreza models from 2001 onwards, including the 2009 GR STI. The recirculating diverter valve is made from solid aluminium and returns charge air to the intake system, keeping external noise to a minimum. It enables faster throttle response and greater clamping force for more reliable boost pressure retention.
The kit includes:
- 1 × FMDVSUB03 valve
- 1 × Forge sticker
Suitable for: Subaru Impreza II (GD/GG).
Compatible vehicles (manufacturer data)
| Vehicle | Chassis | Years | Engine |
|---|---|---|---|
| Subaru Impreza | — | 2001–2026 | —, Sti s |
Before ordering, check that the product matches your vehicle (model, year and engine). If in doubt, write to us — we will check for you.

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