Gibson 617403 Cat-Back Single Swept-Side Exhaust System Stainless Steel

The Gibson 617403 is a cat-back single swept-side exhaust system constructed from high-quality stainless steel, designed as a direct bolt-on performance upgrade. Featuring Gibson's patented Superflow muffler technology, this system is engineered and dyno-tested to reduce backpressure, delivering increased low-end torque and horsepower while maintaining a deep, aggressive exhaust tone with minimal interior drone.

The system uses 3-inch, 409 stainless steel mandrel-bent tubing throughout, ensuring consistent exhaust flow and maximum efficiency with the least restriction possible at every bend. Slip-fit connections further reduce backpressure at all joining points. Exit position is straight out the back.

Muffler Specifications:

• Design: Baffled & chambered Superflow muffler — no internal packing
• Muffler Body: 4 x 9 x 24 in. oval body
• Inlet: 3.00 in. offset
• Outlet: 3.00 in. offset
• Sound Character: Aggressive exterior tone with minimal interior drone

Exhaust Tip Specifications:

• Style: 4 in. polished T304 stainless steel round slash-cut tip — weld-on
• Tip Inlet: 3 in.
• Tip Outlet: 4 in.
• Tip Length: 7 in.

Kit Includes:

• Stainless steel mandrel-bent tubing (3 in. diameter)
• Superflow baffled/chambered muffler
• Resonator
• 4 in. polished T304 stainless slash-cut tip
• All hardware and factory-style hangers for bolt-on installation

Key Features:

• Mandrel-bent 409 stainless steel tubing for consistent, unrestricted flow
• Patented Superflow chambered/baffled muffler technology
• No welding or drilling required — direct factory-style bolt-on fitment
• Zinc-plated hangers and clamps included
• Made in the USA
• Backed by Gibson's Lifetime Limited Warranty

The Gibson 617403 is proudly made in the USA and covered by a Lifetime Limited Warranty, warranting stainless steel products against internal rust-through for the life of the original owner.