Mishimoto Subaru BRZ / Scion FR-S Aluminum Overflow Tank - PolishedDo you find yourself lying awake at night, horrified by visions of your swollen, plastic blob of an overflow tank? Well we're here to help you rest easy with the Mishimoto 2013 2021 BRZ FR S GT86 coolant overflow tank. Stock plastic tanks are prone to failure due to repeated hot and cold cycles, and they create a horrible eyesore as they lurk in your engine bay. Mishimoto's 2013 2021 BRZ FR S GT86 coolant overflow tank is constructed from durable, TIG