Gibson Exhaust 65660 Cat-Back Dual Sport Exhaust System Stainless Steel

The Gibson Performance Exhaust 65660 Cat-Back Dual Sport Exhaust System delivers a deep, aggressive exhaust tone while keeping interior cabin noise to a minimum. Designed for truck and SUV owners who want a performance upgrade without interference with towing setups, this dual cat-back system routes exits behind the rear tire — an ideal configuration that clears trailer hitches and adds a distinctive street or off-road look.

At the heart of this system is the Gibson SuperFlow™ Muffler, featuring a baffled and chambered design with no internal packing. This construction produces a bold, authoritative exhaust note on the outside while minimizing drone inside the cab. The system is dyno-tested for performance, with average gains of 18–20 horsepower and 15–20 lb-ft of torque, with peak output focused in the critical 1,800–3,000 RPM low-end powerband.

Key Features:

• Cat-back dual sport design — exits behind the rear tire, tow-friendly configuration
• 409 stainless steel mandrel-bent tubing for maximum exhaust flow and corrosion resistance
• Gibson SuperFlow™ muffler — baffled and chambered design, no internal packing
• Minimal interior drone with an aggressive exterior exhaust note
• Stainless steel clampless sport truck tips included
• 100% bolt-on installation — no welding required, all factory hangers and clamps included
• Dyno-proven gains averaging 18–20 HP and 15–20 lb-ft of torque
• Made in the USA
• Backed by a Lifetime Limited Warranty

Installation is straightforward with a hassle-free, bolt-on design. All necessary clamps and factory-style hangers are included for a clean, professional finish without any cutting or welding. Built and backed in the USA, the Gibson 65660 is a performance exhaust system built to last.