Gibson 18602 Swept-Side Cat-Back Single Exhaust System Aluminized Steel

The Gibson 18602 Swept-Side Cat-Back Single Exhaust System is engineered to deliver real-world performance gains where drivers need them most. Constructed from hot-dipped aluminized steel with 2.5-inch mandrel-bent tubing, this system is purpose-built to maximize low-end torque and horsepower for everyday driving, towing, and hauling applications. The exhaust exits behind the passenger-side rear tire for a clean, factory-style appearance with a performance upgrade.

Key Features:

• Dyno-proven power gains averaging 10–15 hp and 15–20 lb-ft of torque, concentrated in the 1,800–3,000 RPM range
• Suspended Flow Technology (SFT) muffler — fully welded, baffled and chambered design for improved volume efficiency and unrestricted exhaust flow with no internal packing
• Mandrel-bent 2.5-inch aluminized steel tubing maintains consistent diameter through every bend for smooth, unrestricted flow
• Slip-fit connectors reduce turbulence and backpressure compared to ball-and-socket or flange-and-gasket joints
• Muffler dimensions: 6 in. Round; 2.50 in. offset inlet; 2.50 in. offset outlet; 24 in. length
• Polished T304 stainless steel exhaust tip — 3 in. round slash-cut, clamp-on style; 2.50 in. inlet, 3 in. outlet, 8 in. length
• Aggressive, deep exhaust tone with minimal interior drone for a comfortable cabin experience
• Bolt-on installation — no welding required; includes zinc-plated factory-style hangers, clamps, and detailed instructions
• Manufactured in the USA

This system features Gibson's slip-fit connection method, where each component fits into the larger opening of the next downstream piece, significantly reducing the power-robbing backpressure common with other joint designs. The included polished T304 stainless steel tip provides a premium finished look straight out of the box.

Backed by Gibson's Lifetime Limited Warranty against defects in materials and workmanship for as long as the original purchaser owns the vehicle on which it was installed.