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The HKS sport exhaust for 1988–1991 Honda Civic Si Hatchback is a vehicle-specific catback-style exhaust system offered in a legal configuration. It replaces the factory exhaust path to provide a finished, model-matched exhaust option for late-1980s to early-1990s Civic Si hatchbacks, intended for owners seeking an OEM-aligned fitment while changing the car's exhaust components for that application.
HKS 88-91 Honda Civic Si Hatchback Sport Exhaust
