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The K&N Typhoon cold air intake for the 2017–2020 Honda Civic Si 1.5L L4 replaces restrictive factory plumbing with a mandrel-bent aluminum intake tube and a washable, reusable high-flow conical air filter. Systems include a heat shield or airbox to reduce hot-engine intake air and typically install in under 90 minutes. K&N’s design is backed by a million-mile service interval for the filter under normal highway driving and includes a limited warranty; CARB status varies by part and vehicle.
K&N 2017 Honda Civic Si 1.5L Typhoon Performance Air Intake System
