Snow Performance 05-14 STI Stg 2 Boost Cooler Water Injection Kit w/SS Brd Line & 4AN Fittings

Snow Performance is known for making reliable water-methanol injection systems that help tuners and enthusiasts get the most out of their turbocharged and supercharged vehicles. This Stage 2 Boost Cooler kit is specifically built for your 2005-2014 Subaru WRX STI with the 2.5L engine, offering a way to increase your pump gas octane by up to 25 points. By injecting a water-methanol mixture, you can achieve a cooler running engine, which allows for more efficient power gains and improved drivability.

This kit includes a custom throttle body spacer plate designed to integrate seamlessly into your STI's intake. It also features a braided stainless steel line and 4AN fittings, which are chosen for their reliability and ease of installation. The heart of this system is the VC-50 progressive controller. This controller, which also functions as a 52mm gauge, proportionally injects more or less of the water-methanol mixture based on your boost pressure. You can adjust the start and full injection points to precisely match your engine's requirements, ensuring accurate delivery across a wide boost range for better performance and handling.

The VC-50 controller's OLED screen is a standout feature, offering a 7-color display that can be customized to match your dash. It shows critical information like boost pressure, percentage of injection, low fluid level warnings, secondary nozzle activation, and even fault codes. This gives you a comprehensive view of your system's operation and your engine's performance in real-time. Please note that this kit is not CARB approved and cannot be shipped to California.