Will OEM Evo IX (2006) metal boost bypass valve fit a Mitsubishi Lancer Evolution VIII (2003-2005)?
Added · Updated
Short answer: Yes, reportedly Limited
Verdict:Fits Limited confidence (1 of 3) · 1 source
Yes, reportedly: Reported as a direct swap.
| Part | OEM Evo IX (2006) metal boost bypass valve (part no. 1545A001) |
|---|---|
| Part comes from | Mitsubishi Lancer Evolution IX (2006) |
| Vehicle | Mitsubishi Lancer Evolution VIII (2003-2005) |
| Years | 2003-2005 |
| Trim / condition | all |
| Verdict | Fits Reported to fit |
| Confidence | Limited 1 of 3 — Forum, Reddit or anecdotal report, or ambiguous/partial detail. Treat as a lead to research. |
| Last verified | 2026-10-26 (date the cited sources were last read) |
Details
Reported as a direct swap. One retailer says every VIII left the factory with a plastic boost bypass valve that leaks with age, and the IX's metal valve looks the same from outside and bolts in. The part number 1545A001 is the retailer's. Single retailer source.
Specs
- part number source: retailer (Wunderladen Racing), not checked against a Mitsubishi catalog
Related known issues
Related build entries
Other engine fitment for the CT9A (Evolution VIII)
- OEM Evo IX (2006) turbocharger (TD05HR, 10.5 cm² turbine housing, larger compressor cover) — Fits with extra parts or work Fits with mods
More for this car
- All Mitsubishi Lancer Evolution VIII (2003-2005) fitment answers · CT9A (Evolution VIII) common problems
- Newsletter archive: past issues with every new and corrected entry
Sources
- USDM EVO 8/9 Year To Year Changes — Wunderladen Racing (vendor article; read 2026-10-26; full page read)E8 plastic bypass valve leaks; E9 metal valve 1545A001 is a direct swap.
Summaries are in our own words. Fitment is not guaranteed — disclaimer.
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