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Swirl polished heads for smoother air flow over the valve
which will reduce the stress on the valve train assembly
(There are known bugs with Evoscan when a COM port higher than 3 is used)
stylish upgrade to your engine bay with a choice of carbon fiber weave or forged carbon finishes
GrimmSpeed Street Engine Mount Kit for Subaru WRX/STi Red Line Swirl polished heads for smootherThe GrimmSpeed street engine mounts for Subaru WRX offers a durable and performance focused replacement for the factory rubber mounts. Made with premium materials, these mounts provide sharper engine feedback, more precise shifting, and less drivetrain movement, while still maintaining manageable levels of NVH. There are different part numbers depending on the year of your car, please review the chart below. Vehicle Fitment: Part Number: 2022+ WRX
