HKS Honda Civic Si (88-91) Hatchback Sport Exhaust

Unlock classic HKS sound and performance with the HKS Sport Exhaust LES-H05, engineered specifically for the 1988–1991 Honda Civic Si. Built for enthusiasts who demand improved exhaust flow without sacrificing street-friendly comfort, this system blends performance, style, and reliability. Key Features: Optimized Performance: Reduces backpressure for enhanced throttle response and horsepower gains. Mild Sport Sound: Delivers a deep, refined tone—sporty without excessive noise. High-Quality Construction: Made from corrosion-resistant steel with precision welds for long-lasting durability. Direct Bolt-On Fitment: Designed for easy installation on stock mounting points, with no major modifications needed. HKS Signature Styling: Features the classic HKS design with a clean, performance-oriented finish. Specifications: Product Code: LES-H05 Vehicle Fitment: Honda Civic Si (EF) 1988–1991 Configuration: Axle-back exhaust (check listing details for full system information) Why Choose HKS? As a pioneer in Japanese performance tuning, HKS delivers top-tier engineering and proven performance. The LES-H05 is ideal for drivers who want a sport exhaust that looks and sounds great—without compromising daily drivability.