Gibson 66523 Cat-Back Dual Sport Exhaust System Stainless Steel

The Gibson 66523 Cat-Back Dual Sport Exhaust System delivers a powerful, authoritative exhaust tone with minimal interior drone — giving trucks and SUVs a performance upgrade that sounds as good as it performs. Designed with a dual exit configuration that routes behind the rear tire, this system keeps exhaust away from tow trailers while adding a clean, aggressive look that sets your vehicle apart on the street or the trail.

Built from stainless mandrel-bent tubing, the system maximizes exhaust flow and long-term durability. Every pipe bend is precision-formed to maintain full tube diameter throughout, eliminating the restrictions and kinks associated with standard crush-bent systems. The result is reduced backpressure, improved throttle response, and dyno-proven gains averaging 10–15 horsepower and 15–20 lb-ft of torque — primarily in the critical low-end range of 1,800–3,000 RPM.

Key Features:

• Muffler: Baffled and chambered Superflow design with no internal packing — produces an aggressive exhaust note while keeping interior cabin drone to a minimum
• Muffler Dimensions: 8 in. round body; 3 in. offset inlet; 2.50 in. dual outlet; 24 in. length
• Exhaust Tips: 3.5 in. polished T304 stainless steel round slash-cut tips, clamp-on design
• Tip Specifications: 2.50 in. inlet; 3.50 in. outlet; 12 in. length
• Exit Position: Dual exit behind the rear tire — tow-trailer friendly
• Stainless mandrel-bent tubing for maximum flow and corrosion resistance
• Bolt-on installation — no welding or cutting required
• Includes all necessary hardware and factory-style hangers
• Made in the USA
• Backed by Gibson's Lifetime Limited Warranty

The Gibson 66523 is a complete bolt-on cat-back exhaust kit designed for straightforward, professional-quality results without requiring custom fabrication or welding. All mounting hardware and factory-style hangers are included for a clean, rattle-free fit.