GrimmSpeed engine dress-up pieces have been extremely popular with Subaru owners over the years, but there’s always been one small piece missing: Introducing The GrimmSpeed Boost Control Solenoid Cover for the 08-2021 Subaru STI!

We decided on a subtle design for this cover that mimics the “vent” styling on our matching GrimmSpeed Alternator Cover. Is it made from a single piece of lightweight aluminum with a laser-cut GS logo for you to proudly represent your favorite aftermarket performance parts company! The piece is machine cut and bent for perfect OE-style fitment and is incredibly easy to install. The GrimmSpeed EBCS Covers are available in either black, red or neon green wrinkle powder coat to perfectly match The GrimmSpeed Alternator Covers, Radiator, and Fender Shrouds, making a complete set for your 08-21 STI.