Fitment: This GrimmSpeed 3 - Port Boost Control Solenoid is specifically designed for 2015 - 2021 Subaru WRX models equipped with aftermarket turbo kits only. It's important to note that this solenoid doesn't come with the adapter for the stock FA20 turbo inlet, so it's not suitable for stock turbochargers or stock replacement turbos.Features: Compared to the factory 2 - port system, our 3 - port electronic boost control solenoid (EBCS) offers a significant advantage during tuning. It precisely interrupts the boost signal from the turbo to the wastegate, while the factory system just 'bleeds' the signal, resulting in a slower and less precise reaction. Dyno tests on a 2015 WRX show that after installing the GrimmSpeed 3 - Port BCS, the boost control becomes much tighter and more consistent, which is safer for your car and easier for the tuner. This FA20 EBCS for aftermarket turbos has many great features. It comes with 1/4 - inch barbed fittings that are zinc - plated and pre - assembled with anaerobic sealant, matching the factory hose sizes. The 3 - port solenoid has proprietary internal modifications for extreme under - vehicle conditions. The plug - n - play wiring connector attaches directly to the OEM wiring harness. Its flexible design allows for easy installation near the aftermarket turbo inlet, without the need to mount it elsewhere in the engine bay. The mounting bracket is made from laser - cut and CNC - bent steel, black zinc - plated, and comes with stainless press - in nuts. It provides a quicker and more precise boost control response, arrives fully assembled, and is ready for installation. However, tuning is required.What's in the Box: You'll receive a fully assembled 3 - Port Boost Control Solenoid with a plug - n - play connector, a 1/4 - inch hose that's four feet long, zip ties, and all the necessary installation hardware.
Using Your GrimmSpeed 3 - Port Boost Control Solenoid: First, make sure your Subaru WRX from 2015 - 2021 has an aftermarket turbo installed, as this solenoid is not for stock turbos. Check the box contents to ensure you have the solenoid, the 1/4 - inch hose, zip ties, and all the installation hardware. Connect the plug - n - play wiring connector directly to the OEM wiring harness. Attach the 1/4 - inch barbed fittings to the appropriate hoses according to the factory hose sizes. Mount the solenoid using the provided mounting bracket near the aftermarket turbo inlet. Once installed, you'll need to have your car tuned by a professional. This will help you get the best performance out of the solenoid and ensure proper boost control.Notice: Remember, this solenoid is only for aftermarket turbo setups. Do not attempt to use it with the stock turbo or stock replacement turbos, as it won't work properly and may cause damage. Always follow the installation instructions carefully.Maintenance: Regularly check the solenoid and its connections for any signs of wear or damage. Inspect the hoses and fittings for leaks. If you notice any issues, consult a professional mechanic or contact GrimmSpeed for support. Keep the solenoid clean and dry to ensure its long - term performance.
