Brian Crower Subaru EJ205-WRX/EJ257-STi Single Valve Springs YMM_2009_2015_Bmw_X1_I_E84 or canyon carving

or canyon carving

Easy bolt-on installation for most compatible vehicles

The assembly includes all necessary hardware for installation

contributing to a smooth and controlled drive

Its core is made from lightweight aluminum

Brian Crower Subaru EJ205-WRX/EJ257-STi Single Valve Springs YMM_2009_2015_Bmw_X1_I_E84 or canyon carvingThe Brian Crower Spring Retainer Kit is a high performance upgrade designed for Subaru WRX and STI models from 2002 and newer. This kit enhances the valve train's reliability and durability, particularly under high RPM conditions, making it ideal for enthusiasts and performance builders. Crafted with precision materials, the retainers and springs work together to maintain proper valve control, reducing the risk of valve float and ensuring consistent