Gibson Performance Exhaust 315630 Swept Side Cat-Back Single Exhaust System Aluminized Steel

The Gibson Performance Exhaust 315630 Swept Side Cat-Back Single Exhaust System is engineered to deliver real-world low-end power gains for trucks and SUVs. Constructed from heavy-duty aluminized steel with 3.5-inch mandrel-bent tubing, this cat-back system reduces backpressure and optimizes exhaust flow for maximum performance where you need it most — at the low end of the power band.

Gibson's proprietary baffled and chambered muffler design delivers an aggressive exhaust tone while keeping interior cab noise to a minimum. Unlike systems tuned for high-RPM performance, this system is dyno-tested to produce peak horsepower and torque gains between 1,800 and 3,000 RPM — the range most critical for everyday driving, towing, hill climbing, and passing.

Key Features:

• Cat-back exhaust system with 3.5-inch aluminized mandrel-bent tubing for unrestricted exhaust flow
• Baffled and chambered muffler design — no internal packing — for consistent, long-lasting sound and performance
• Muffler dimensions: 8 x 11 x 24 in. oval body with 3.5-inch offset inlet and outlet
• Includes a 4-inch polished T304 stainless steel round rolled tip (3.5-inch inlet, 4-inch outlet, 12-inch length)
• Dyno-proven horsepower gains averaging 18–21 HP and torque gains of 20–22 lb-ft
• Single side exit behind the rear tire in stock location
• Minimal interior drone — quieter in-cab than comparable performance exhaust systems
• Includes all hardware and factory-style hangers for a complete bolt-on installation — no welding required, no drilling
• Zinc-plated hangers and clamps for added corrosion resistance
• Backed by Gibson's Lifetime Limited Warranty

Designed for a straightforward, professional-quality installation, the Gibson 315630 is a cost-effective performance upgrade for truck and SUV owners seeking improved acceleration, towing capability, and a deep, aggressive exhaust note without sacrificing daily drivability.