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The CSF aluminum auxiliary filler neck for 2013–present Subaru BRZ, 2013–2020 Toyota 86 and 2022–present GR86 replaces the factory plastic neck with a 100% TIG-welded, mirror-polished aluminum unit fitted with a 1.4 bar high-pressure mini-style radiator cap embossed with the CSF logo. It includes an integrated 1/8 NPT sensor port with a preinstalled plug for aftermarket sensors and is an easy drop-in replacement with no modifications in under five minutes.
CSF 13+ BRZ / 13-20 Toyota 86 / 22+ GR86 Aluminum Filler Neck w/ High Pressure Radiator Cap
