The Soul Performance Side Muffler Bypass Pipes - POR997GT3SMBV are high-quality aftermarket exhaust pipes designed specifically for the Porsche 997 GT3. These pipes are designed to replace the factory side mufflers, providing a more aggressive exhaust note and increased performance. The pipes are made from T304L stainless steel and feature mandrel-bent tubing for optimal flow. They also come with high-flow HJS HD 200 cell catalytic converters for improved exhaust flow and reduced backpressure. These bypass pipes are a direct bolt-on replacement for the factory side mufflers and do not require any modifications for installation. They are a great upgrade for any Porsche 997 GT3 owner looking to improve the sound and performance of their vehicle.