Gibson Exhaust 66564 Cat-Back Dual Sport Exhaust System Stainless Steel

The Gibson Performance 66564 Dual Sport Cat-Back Exhaust System is a fully stainless steel, bolt-on exhaust upgrade designed for trucks and SUVs. The dual-exit configuration routes exhaust tips behind the rear tire, keeping clearance for tow trailers while delivering an aggressive, distinctive look on the street or off-road.

Built with 2.25-in. stainless mandrel-bent tubing, this system maximizes exhaust flow with minimal restriction, producing consistent velocity throughout. The baffled and chambered muffler design delivers a powerful, deep exhaust tone with minimal interior cab drone. Dyno-tested and dyno-tuned to the specific application, this system is engineered to deliver average gains of 10–15 horsepower and 15–20 lb-ft of torque.

Key Features:

• Muffler Design: Baffled and chambered construction — no internal packing, minimal interior drone, aggressive sound profile
• Muffler Dimensions: 4 x 9 x 18 in. oval body; 3.00 in. center inlet; 2.25 in. dual outlet
• Tubing: 2.25-in. diameter stainless mandrel-bent tubing for unrestricted exhaust flow
• Exhaust Tips: 3.50 in. polished T304 stainless steel, round slash-cut style, clamp-on installation
• Tip Specifications: 2.25 in. inlet; 3.50 in. outlet; 12 in. length
• Exit Position: Behind the rear tire — tow-trailer friendly
• Includes all hardware and factory-style hangers for a hassle-free, no-weld bolt-on installation
• Backed by a Lifetime Limited Warranty against defects in workmanship and materials

The Gibson 66564 is sold as a complete kit and requires no cutting or welding, making it an ideal performance upgrade for truck and SUV owners seeking increased power and an aggressive exhaust note without sacrificing everyday driveability.