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.
Features
delivers deep aggressive exhaust sound
significant weight reduction of 40 pounds
304 stainless steel aerospace tubing
meticulously tig welded
brushed stainless finish
stainless hardware and clamps
100% emissions legal
will not void warranty
factory secondary mufflers and catalytic converters are all retained
50 state emission compliant
direct bolt on replacement
compatible with 991 GT3 and 991 GT3rs models
made in usa