Valved Catback Exhaust for Honda Civic Si (9th Gen) (2012–2015)

This valved catback exhaust system allows you to switch anytime between quiet OEM-style comfort and a louder, more aggressive performance tone. Built from high-grade 304 stainless steel with precision TIG welding, it provides durability, corrosion resistance, and a clean factory-style finish. The system is fully bolt-on with no cutting or welding required, making installation straightforward for most performance and exhaust shops. Designed specifically for the naturally aspirated 2.4L K24 engine in the 9th-generation Civic Si, it improves exhaust flow and throttle response while delivering a deeper and more engaging sound when the valve is open.

Fitment: Compatible with Honda Civic Si 9th Generation (2012–2015), sedan and coupe models. Fitment can be confirmed with VIN or rear exhaust photo if needed.

What’s Included:

Mid-pipe + rear valved catback system

Mounting hardware and clamps

Wireless valve controller or factory valve integration depending on configuration

Sound Characteristics:

Cold Start: deeper and more noticeable tone

Valve Open: loud, sporty, and performance-focused sound

Valve Closed: close to OEM comfort for commuting and night-time use

Shipping: Ships directly from our partner factory. Estimated delivery: 2–5 weeks

Warranty: If the product arrives damaged or defective, replacement parts will be provided.