Fitment: 2015 - 2021 Subaru WRX. A 3 - port boost control system (ebcs) offers clear advantages over the factory 2 - port system during tuning. The GrimmSpeed Turbo Inlet Adapter for the 3 - port boost control solenoid transforms your setup into a 3 - port system. The factory boost control solenoid is a 2 - port one mounted on the plastic turbo inlet. Grimmspeed's adapter is a great solution. It allows you to adapt other boost control solutions and use the extra port properly. The adapter is custom - machined, using the factory inlet recirculation port. It has a black anodized finish for corrosion protection in tough conditions. The Viton O - Ring offers high durability and resistance to oil and gasoline. The mounting bracket is laser - cut and anodized. The barbed 1/4' inch fitting is zinc plated and preassembled with anaerobic sealant. What's in the box: (1) Mounting bracket with turbo inlet adapter and viton o - ring, (1) 1/4' inch four - foot long vacuum hose, zip ties, and all necessary installation hardware.


Using this GrimmSpeed boost control solenoid adapter is easy. First, gather all the parts from the box, including the mounting bracket, vacuum hose, zip ties, and installation hardware. Then, install the adapter on your 2015 - 2021 Subaru WRX. Make sure to connect the vacuum hose properly. You can choose to use the included barb fittings or optional AN fittings. You can pair it with the Grimmspeed Boost Control Solenoid, a manual boost controller, or other boost control solutions. When installing, be careful with the Viton O - Ring. Don't damage it as it's important for sealing. For maintenance, check the adapter regularly for any signs of corrosion, especially if you drive in harsh environments. The black anodized finish helps protect it, but it's still a good idea to look for any damage. If the barbed fitting shows signs of wear, you might need to replace it. Also, make sure the vacuum hose is in good condition and there are no leaks. Keep the zip ties tight to ensure everything stays in place.