Cat-Back Single Exhaust System

The Gibson Performance Exhaust 615566 is a high-performance cat-back single exhaust system engineered for 1975-1987 Chevrolet and GMC 1500 Pickup trucks equipped with 5.0L, 5.7L, or 7.4L engines. Constructed from durable 409 stainless steel, this system features 3-inch mandrel-bent tubing designed to optimize exhaust flow and enhance performance. The Gibson Superflow Muffler utilizes a baffled and chambered design without internal packing, aiming to deliver an aggressive exhaust note while minimizing interior drone and cabin noise. The system exits behind the rear tire, contributing to its performance characteristics. Accompanying the main system is a stylish 3.5-inch polished T304 stainless steel tip with a round, slash-cut design. The tip is clamp-on and features an inlet diameter of 3 inches and an outlet diameter of 3.5 inches, with a length of 12 inches. The muffler itself measures 8 inches round with a 3.00-inch offset inlet and outlet, and a length of 24 inches. All necessary hardware and factory-style hangers are included to ensure a seamless fit. Gibson Performance Exhaust backs this system with a Lifetime Limited Warranty.