GSC P-D CroMo beehive spring seat for 2013–2015 Scion FR-S and Subaru BRZ FA20 engines is sold as a single unit designed to support beehive-style valve springs. Constructed from chromoly per the product title, this spring seat is intended for valve spring and retainer assemblies used during cylinder head servicing or performance spring upgrades on FA20-equipped vehicles.
GSC P-D 13-15 Scion FR-S / BRZ FA20 CroMo Beehive Spring Seat (Single)