Gibson Exhaust 67402 Cat-Back Dual Split Exhaust System - Stainless Steel

The Gibson Performance Exhaust 67402 is a cat-back dual split exhaust system constructed from mandrel-bent 409 stainless steel tubing, engineered to deliver real-world performance gains alongside an aggressive exhaust note. By reducing backpressure, this system is dyno-proven to maximize low-end torque and horsepower in the 1,800–3,000 RPM range — exactly where it matters most for daily driving and towing applications.

Performance Gains:

• Dyno-proven power gains averaging 10–15 horsepower and 15–20 lb-ft of torque
• Optimized for low-end RPM range (1,800–3,000 RPM) for real-world usability
• Reduces backpressure for improved throttle response and potential fuel economy improvement

Gibson Superflow Muffler:

• Baffled and chambered muffler design with no internal packing
• Produces a deep, aggressive exhaust tone with minimal interior cabin drone
• Muffler dimensions: 4 x 9 x 18 in. oval body; 2.50 in. dual inlet; 2.50 in. dual outlet

Tips & Tubing:

• 2.50 in. mandrel-bent 409 stainless steel tubing throughout
• 4 in. polished T304 stainless rolled slash-cut tips — clamp-on style
• Tip specs: 2.50 in. inlet / 4.0 in. outlet / 12 in. length
• Dual tip exit straight out the rear for a true dual exhaust appearance

Design & Installation:

• Compatible with most factory bumpers, roll pans, and trailer hitches
• Bolt-on installation using factory-style zinc-plated hangers and clamps — no welding required
• Includes detailed installation instructions and Gibson decal
• Note: Exhaust sound may be louder under towing conditions

Quality & Warranty:

• Proudly manufactured in the USA
• Backed by a Lifetime Limited Warranty covering defects in materials, workmanship, and rust-through for the original purchaser
• UPC: 677418017601