GrimmSpeed Street Engine Mount Kit for Subaru WRX/STi Red Line Swirl polished heads for smoother

Swirl polished heads for smoother air flow over the valve

(There are known bugs with Evoscan when a COM port higher than 3 is used)

Shown below is a plumbing example

which will reduce the stress on the valve train assembly

but was discontinued by mitsubishi in April 2023

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