Fitment: This MAF block off plate is a perfect fit for 2008 - 2014 Subaru WRX and STI models. Features: When you upgrade your Subaru to a Blow - Through System, this GrimmSpeed MAF Block Off Plate blocks the old MAF Sensor location. It's made of durable aluminum with a sleek black anodized finish and a white GrimmSpeed logo. The plate comes with an O - ring for an air - tight seal. Its compact design is curved to match the intake piping diameter, so it won't obstruct the airflow. And it's incredibly easy to install. California Prop 65 Warning: Working on your vehicle can expose you to harmful chemicals. Minimize exposure by avoiding exhaust fumes, idling the engine only when needed, servicing in a well - ventilated area, and washing your hands or wearing gloves often. For more info, visit www.p65warnings.ca.gov.

Using your GrimmSpeed MAF Block Off Plate is a breeze. First, make sure your vehicle is turned off and cooled down. Locate the old MAF Sensor location on your 2008 - 2014 Subaru WRX or STI. Take the block off plate and carefully place it in the correct position. The O - ring ensures an air - tight seal, so make sure it's properly seated. You can then secure the plate in place. It's designed for easy install, so you won't need any complex tools or skills. When it comes to maintenance, periodically check the O - ring for any signs of wear or damage. If you notice any issues, replace the O - ring. Keep the plate clean by wiping it down with a soft cloth. Remember to follow the California Prop 65 guidelines to minimize your exposure to harmful chemicals while working on your vehicle.