Description Our exhaust manifold is made of high-quality 201 stainless steel, electroplated low-carbon steel flange, and mirror. The computerized bending technology ensures smoother exhaust flow, thus improving emission performance and reducing back pressure. Features Long Tube Headers Extension Pipes & Resonator Included Tube Diameter: 1.75" Collector Size: 3.00" Flange Connections O2 sensor bung insertion; Metal gasket included 2-Piece 4-1 Racing design(8-2-1) Increase high flow air, instantly gain 10 to 15 Hp. / Tq. FIT PONTIAC GTO 05-06 LS2 6.0L V8

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