GrimmSpeed mudflaps for 2015–2021 Subaru WRX/STI are black mudflaps with red lettering designed to mount behind the wheels to help block road spray and debris while adding a branded styling touch. They are sized and styled for WRX/STI models in those years and offer a simple exterior styling upgrade that integrates with the vehicle’s lower bodywork.
GrimmSpeed 15-21 Subaru WRX/STI Mudflaps - Black w/ Red Lettering