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The Koyo aluminum filler neck is a replacement part for 2008–2015 Mitsubishi Evolution X applications. Offered as a billet-style aluminum component, it provides a direct substitution for the OEM filler neck while retaining proper coolant routing. The part cleans up the engine bay appearance and uses aluminum construction specified in the product title, making it a simple upgrade for Evo X owners seeking a durable metal replacement.
Koyo 08-15 Mitsubishi Evolution X Aluminum Filler Neck
