aFe Takeda MACHForce XP Exhaust Cat-Back 12 Honda Civic Si L4 2.4L SEDAN ONLYThis unique dual transverse exhaust system is constructed form mandrel bent stainless steel and is TIG welded. This system was designed and engineered by tuning the perfect tube lengths; ultimately maximizing performance across the power band while maintaining a great tone. aFe carefully engineered this system to maintain distinct exhaust tones. All exhaust syst ems are engineered and manufactured in our Corona California manufacturing facility. All