For Honda Civic Si Performance 4-2-1 Design Tri-Y Stainless Steel Exhaust Header Kit FD FA FG FN
For Honda Civic Si Performance 4-2-1 Design Tri-Y Stainless Steel Exhaust Header Kit FD FA FG FN: Automotive. Buy For Honda Civic Si Performance 4-2-1 Design Tri-Y Stainless Steel Exhaust Header Kit FD FA FG FN: Headers - ✓ FREE DELIVERY possible on eligible purchases. Precision machined steel flanges that provide a tight seal at the head and allows a high flow rate through the primary tubes . Made From High Quality T304 Stainless Steel For Strength & Durability . Constructed With TIG Welded CNC Machine Flange For Percision & Fitment . All Tubing Is Mandrel-Bent . Comes With O2 Sensor Insertion & Metal Gasket . The exhaust manifold found on the - Honda Civic SI 4 Cylinder Engine were designed to combine the exhaust gasses from each of the cylinders quickly with a manifold that was cost effective to produce. Our 4-2- Tri-Y off-road racing headers are designed to allow the exhaust gasses to flow more freely from each cylinder and combine in a more efficient manner. Tubing has been optimized for the 2.0L engine. This creates a reduction in cylinder backpressure and improved exhaust gas velocity. These improvements free up lost horsepower and torque. An added benefit is a more performance oriented exhaust sound..Package Included: x Set of exhaust headerAll necessary hardware, bolts, and gaskets.Compatible with:06- Honda Civic Si 2.0L . . .