HFS4-v3.2 Water/Methanol Injection Kit

The Aquamist HFS4-v3.2 water/methanol injection kit is engineered for direct injection (DI) engines, offering enhanced performance and engine protection. This advanced system utilizes a Fast Acting Valve (FAV) that precisely controls the fluid delivery rate via a PWM signal from the HF4 controller, ensuring superior linearity and atomization across the entire injection range. A constant line pressure of 160 psi is maintained by an Aquatec pump operating in bypass mode, mimicking conventional fuel injection systems for a wide dynamic range and responsive engine load management. This kit boasts several advanced capabilities, including an additional AUX input that allows the system to adjust flow based on air temperature, exhaust temperature, or air-fuel ratio. In the event that any of these signals exceed a pre-set level, the fail-safe system will be triggered to protect the engine. The standard turbine flow sensor-based fail-safe mechanism is also retained, providing a dual layer of protection. To ensure proper fitment, users must select their specific vehicle model from a comprehensive list, which includes options ranging from universal fit (with specific exceptions like VW MK7 and Audi S3) to detailed selections for Audi, BMW, Ford, Mercedes, Porsche, and Subaru models, among others. Please note that this item is considered a special order and is not available for immediate dispatch. Pricing and estimated delivery times may vary, and no returns, cancellations, or refunds are permitted on special orders.