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For Honda Civic Si Performance 4-2-1 Design Tri-Y Stainless Steel Exhaust Header Kit FD FA FG FN
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About For Honda Civic Si Performance 4-2-1 Design Tri-Y
The exhaust manifold found on the 2006-2011 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 4-2-1 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: 1 x Set of exhaust header All necessary hardware, bolts, and gasketsCompatible with: 06-11 Honda Civic Si 2.0L
