BBI Porsche 997 & 991 GT3/RS Sude Exhaust Bypass

The BBi Autosport 997 & 991 GT3 / RS Exhaust Side Bypass is a direct replacement for the factory primary side mufflers. The primary mufflers are weigh approximately 44 pounds total while the BBi pipes are 4 pounds in comparison. For durability and protection against corrosion, each system is meticulously TIG welded using 304 aerospace grade stainless tubing with lower carbon content. The result is a substantial reduction in weight behind the rear axle which significantly improves handling and less restriction to produce a much more aggressive exhaust note._x000B_Features _x000B_ï Delivers deep aggressive exhaust sound_x000B_ï Significant weight reduction of 40 pounds_x000B_ï 304 stainless steel aerospace tubing_x000B_ï Meticulously TIG welded_x000B_ï Brushed stainless finish_x000B_ï Stainless hardware and clamps_x000B_ï 100% emissions legal_x000B_ï Will not void warranty_x000B_ï Factory secondary mufflers and catalytic converters are all retained_x000B_ï 50 state emission compliant_x000B_ï Direct bolt on replacement_x000B_ï Compatible with 991 GT3 and 991 GT3RS models_x000B_ï Made in USA_x000B_