Introducing our factory-made {FIT 06-11 CIVIC SI FG2/FA5 K20 STAINLESS 1.75"ID 1PC FLEX TRI-Y EXHAUST HEADER}, designed to enhance the performance of your vehicle. Constructed with premium stainless steel, this header offers exceptional durability, ensuring a long-lasting product. The 1.75"ID size ensures optimal flow and exhaust efficiency, resulting in improved power and torque. Furthermore, our innovative tri-y design enhances exhaust scavenging, reducing backpressure and increasing overall engine performance. With a flexible connection, installation becomes a breeze. Trust our factory expertise and equip your Civic SI FG2/FA5 K20 with this high-quality exhaust header for an enhanced driving experience.