Gibson Exhaust 617000 Cat-Back Dual Exhaust System Stainless Steel

The Gibson 617000 Cat-Back Dual Exhaust System delivers a bold performance upgrade with an aggressive exhaust note and real power gains. Built around Gibson's proven baffled and chambered muffler design, this system uses resonance chambers, directional louvered tuning ports, and angular induction to efficiently draw exhaust gases through the muffler and expel them at higher velocity—maximizing flow and minimizing backpressure.

The system features 2.50-in. 409 stainless mandrel-bent tubing for smooth, unrestricted exhaust flow throughout the entire system. Mandrel bending ensures consistent interior diameter through every curve, eliminating the pinch points that rob power in conventional bent tubing.

Key Features:

• Muffler Design: Baffled and chambered construction with no internal packing — delivers minimal interior drone with an aggressive exterior sound
• Muffler Dimensions: 4 x 9 x 13 in. oval body; 2.50-in. offset inlet; 2.50-in. center outlet
• Tubing: 2.50-in. 409 stainless steel mandrel-bent tubing for maximum flow and long-term corrosion resistance
• Exhaust Tips: 4-in. polished T304 stainless dual-wall slash-cut tips — weld-on style
• Tip Specs: 2.50-in. inlet; 4-in. outlet; 8-in. length
• Installation: Bolt-on, no-weld fitment using factory-style hangers and all included hardware
• Warranty: Backed by Gibson's Lifetime Limited Warranty

This cat-back exhaust system installs without welding, using factory-style hangers and all necessary hardware for a clean, professional result. The deep, powerful exhaust rumble enhances the driving experience while improving acceleration and horsepower output. Finished with polished T304 stainless slash-cut tips for an aggressive, show-quality appearance.