Gibson Exhaust 65686 Cat-Back Dual Split Exhaust System - Stainless Steel

The Gibson 65686 Cat-Back Dual Split Exhaust System is engineered for performance enthusiasts who demand aggressive sound, standout style, and real power gains. Crafted from mandrel-bent stainless steel tubing, this cat-back system reduces exhaust backpressure to unlock more low-end torque and increased horsepower. Dyno-proven gains average 15–20 horsepower, delivering performance you can feel from the moment you hit the throttle.

At the heart of the system is a Gibson Superflow Muffler featuring a baffled and chambered design with no internal packing material. This construction produces a deep, aggressive exhaust note while keeping interior drone to a minimum — even under daily driving conditions. Note: exhaust sound may be louder under towing conditions.

Dual 4-inch polished T304 stainless steel rolled slash-cut tips exit straight out the back, delivering an aggressive, clean appearance compatible with most factory bumpers, roll pans, and trailer hitches. All hardware, factory-style hangers, and stainless steel band clamps are included for a straightforward bolt-on installation — no welding required.

Proudly made in the USA and backed by Gibson's Lifetime Limited Warranty.

Muffler Specifications:

• Design: Baffled & Chambered, No Internal Packing
• Sound Profile: Aggressive, Minimal Interior Drone
• Body: 8 in. Round
• Inlet: 3 in. Offset
• Outlet: 2.25 in. Dual
• Length: 24 in.

Tip Specifications:

• Style: 4 in. Polished T304 Stainless, Rolled Slash-Cut, Clamp-On
• Inlet: 2.25 in.
• Outlet: 4.0 in.
• Length: 12 in.

Tubing: 2.25 in. stainless mandrel-bent tubing