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We decided on a subtle design for this cover that mimics the “vent” styling on our matching GrimmSpeed Alternator Covers. Is it made from a single piece of lightweight aluminum with a GS logo on top for you to proudly represent your favorite aftermarket performance parts company! The piece is laser cut and bent for perfect OE-style fitment and is incredibly easy to install. Available in durable red, black or neon green powder coat to match the other GrimmSpeed dress-up offerings for your 08-21 STI.