This air to water intercooler is fully constructed with lightweight aluminum, specially designed for Sea Doo jet ski modification. Adopts professional liquid cooling core structure, quickly dissipate heat from compressed intake air, greatly reduce intake temperature to boost engine horsepower and stabilize running performance. TIG full welding technology ensures zero water leakage and air leakage under high pressure marine environment. Standard 3.0 inch inlet and outlet match most jet ski intake piping, built-in water thread port for convenient liquid pipeline connection.