Gibson 315547 Cat-Back Single Exhaust for 2001-2007 Chevy/GMC 2500/3500

Vehicle Fitment

• 2001-2007 Chevrolet Silverado 2500/3500 (Base, LS, LT, WT) - 6.0L/8.1L V8
• 2001-2007 GMC Sierra 2500/3500 (Base, SL, SLE, SLT, WT) - 6.0L/8.1L V8

Features

• Aluminized Cat-Back single exhaust system engineered for improved low-end torque and horsepower
• Mandrel-bent 4.00" tubing for smooth, unrestricted exhaust flow
• Superflow™ baffled and chambered muffler for a richer, aggressive tone with reduced drone
• Polished 5.00" T304 stainless steel slash-cut tip for premium rear styling
• Single side exit located behind the rear tire for classic truck exhaust look
• Bolt-on installation with factory-style hangers and all included hardware - no welding required
• Designed for towing, hauling, and general performance improvements
• Backed by Gibson Performance lifetime limited warranty

Specifications

• Part Number: 315547
• Exhaust Type: Cat-Back - Single Side Exit
• Material: Aluminized Steel Tubing
• Main Tubing Diameter: 4.00"
• Muffler Type: Superflow™ baffled and chambered design
• Muffler Body Diameter: ~8.00"
• Tip Material: T304 Stainless Steel
• Tip Diameter: 5.00" polished slash-cut

Included Components

• 1x Cat-Back single exhaust assembly
• 1x Superflow™ baffled muffler
• 1x Polished 5.00" stainless steel slash-cut tip
• 1x Set of clamps, hangers, and installation hardware

Product Description

The Gibson 315547 Cat-Back Single Exhaust System is a direct-fit performance upgrade specifically designed for 2001-2007 Chevrolet Silverado and GMC Sierra 2500/3500 trucks equipped with 6.0L or 8.1L V8 engines. Constructed with mandrel-bent aluminized steel tubing and a Superflow™ baffled muffler, this exhaust improves low-end torque, enhances throttle response, and delivers a deep, aggressive exhaust tone while keeping cabin drone to a minimum. Its single polished stainless steel slash-cut tip adds a premium look behind the rear tire and complements the truck's rugged styling.

Installation is straightforward with included factory-style hangers and hardware - no welding or cutting is required, making it a true bolt-on upgrade. Whether you're towing heavy loads, climbing hills, or cruising on the highway, this Gibson exhaust system offers noticeable performance benefits and stronger sound without compromising everyday drivability. Backed by Gibson's lifetime limited warranty, fitment is confirmed for 2001-2007 Silverado/Sierra 2500/3500 trucks with 6.0L or 8.1L V8 engines. Coverage beyond these model years is unconfirmed at time of listing.