Cat-Back Exhaust System 6.0L 8.1L 3-Inch 409SS Dual Rear

The JBA 40-3030 cat-back exhaust system is engineered to enhance the performance and sound of 2001-2006 Chevrolet Silverado and GMC Sierra 2500/3500 HD trucks equipped with 6.0L or 8.1L V8 engines. This system replaces the restrictive factory exhaust with a free-flowing, dual exit design crafted from durable 409SS stainless steel. The construction features large-diameter, mandrel-bent tubing for optimal exhaust flow, contributing to increased horsepower, torque, and improved throttle response. It is paired with a high-flow stainless steel muffler, carefully tuned to provide an aggressive exhaust tone without being overwhelming inside the cabin. The system terminates with polished chrome tips, measuring 3.5 inches in diameter, complementing the 3-inch tailpipe diameter. According to JBA's specifications, this exhaust system is legal for sale and use in all 50 states as it is considered a replacement part compliant with CARB and EPA emissions regulations. Some sources indicate that the installation may require cutting of the factory exhaust components.