GSC (STD) Stopper Exhaust Valve Guide Set of 8 Subaru WRX 15-21 / BRZ 13-20 / FR-S 13-16 | 3105-8 vendor_SubieTrays These mounts are stiffer than

These mounts are stiffer than the Subaru Group N mounts and may not be ideal for daily driving

Experience smoother

All-Weather & Spill ResistantWaterproof design keeps dirt

2009-2018 Nissan GT-R (2015-2018 Excluding Brembo / Stoptech Design)

GSC (STD) Stopper Exhaust Valve Guide Set of 8 Subaru WRX 15-21 / BRZ 13-20 / FR-S 13-16 | 3105-8 vendor_SubieTrays These mounts are stiffer thanProduct Fitment: 2013 2016 Scion FR S 2013 2020 Subaru BRZ 2015 2021 Subaru WRX Upgrade your FA20 engines valvetrain reliability and precision with the GSC Power Division Stopper Style Exhaust Valve Guides. Designed for high performance and forced induction applications, these valve guides deliver superior strength and wear resistance compared to factory components. The stopper style design provides enhanced stability for the exhaust valve,