Billy Boat Performance exhaust system installed on a modified 2003 Porsche GT2 in Lapis Blue Metallic paint. The Billy Boat Performance exhaust system features a single transverse style muffler that produces a deep and mellow exhaust sound. Installing the Billy Boat Performance exhaust system on any modified 2003 Porsche GT2 will not only increase horsepower and torque but also enhances the looks of the 996TT.

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