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The Snow Performance Stage 2 Boost Cooler is a water‑methanol injection kit for 2015+ Subaru WRX (non‑STI) that cools intake charge and can raise pump‑gas octane by roughly 25 points for more efficient power. The complete kit includes a throttle‑body spacer plate, braided stainless line with 4AN fittings and a progressive VC‑50 controller that proportionally meters injection with adjustable start and full points and a seven‑color OLED display.
Snow Performance Stage 2 Boost Cooler 2015+ Subaru WRX (Non-STI) Water Injection System
