Snow Performance Stage 2 Boost Cooler 2015+ Subaru WRX (Non-STI) Water Injection System

Snow Performance is well-known for making reliable water-methanol injection systems that help you get more out of your forced induction engine. This Stage 2 Boost Cooler system is built specifically for your 2015-2020 Subaru WRX STI, helping to increase your pump gas octane by up to 25 points. By injecting a water-methanol mixture, the system effectively cools your intake charge, allowing your engine to run more efficiently and make more power, especially when you're pushing it hard.

What sets this kit apart is the included VC-50 controller, which also functions as a 52mm OLED boost gauge. This controller proportionally injects the water-methanol mixture based on your boost pressure, meaning you get accurate delivery across a wide range of engine demand. You can adjust the start and full injection points to perfectly match your engine's requirements, improving drivability and performance. The system uses a custom throttle body spacer plate, braided stainless steel lines, and 4AN fittings for a solid and reliable installation. The VC-50 controller features a 7-color OLED screen that can display boost pressure, percentage of injection, low fluid level warnings, and even fault codes, allowing you to customize it to match your dash and keep an eye on critical functions.

This kit is designed to be a complete solution for your WRX STI. It includes everything needed for installation, including the custom throttle body spacer plate and braided stainless steel lines. Remember that this system is not CARB approved and cannot be shipped to California.