Gibson Exhaust 65629 Cat-Back Super Truck Exhaust System Stainless Steel

The Gibson 65629 Super Truck Cat-Back Exhaust System is Gibson's most aggressive performance exhaust offering, delivering a powerful race-truck rumble tone and deep, authoritative sound. Dual tailpipes exit in front of the rear tires and are finished with a polished T304 stainless steel rectangular tip for a bold, distinctive appearance.

At the core of the system is Gibson's Superflow muffler featuring a baffled and chambered design with no internal packing — maximizing exhaust flow while keeping interior drone to a minimum. All tubing is 2.50-inch diameter 409 stainless steel, mandrel-bent for consistent flow and minimal backpressure. Slip-fit pipe connections further reduce turbulence at joining points for optimized performance.

Dyno-tested performance gains average 10–15 horsepower and 15–20 lb-ft of torque, with power delivery focused in the low-end RPM range for stronger acceleration and passing response. Installation is a straightforward bolt-on process — no welding required — with all hardware and factory-style hangers included.

Key Features:

• Cat-back exhaust system with dual exit in front of rear tires
• 2.50-in. diameter 409 stainless steel mandrel-bent tubing
• Superflow muffler: baffled and chambered design, no internal packing, minimal interior drone
• Muffler dimensions: 4 x 9 x 18 in. oval body; 3.0 in. center inlet; 2.0 in. dual outlet
• Tip: 6 in. polished T304 stainless steel rectangle tip (clamp-on); inlet 2 in., outlet 6 x 2.75 in., length 6 in.
• Average dyno-tested gains: 10–15 HP and 15–20 lb-ft torque
• Hassle-free bolt-on installation — no welding required
• Includes all hardware and factory-style hangers
• Noise level may exceed 95-decibel standard
• Not recommended for heavy-duty towing
• Backed by Gibson's Lifetime Limited Warranty

Built entirely from corrosion-resistant stainless steel, the Gibson 65629 is engineered for long-term durability and lasting performance. UPC: 677418019032.