Gibson 3in Cat-Back Single Exhaust | GMC C3500 Sierra (88-89) (615556L)
Gibson 3in Cat-Back Single Exhaust | GMC C3500 Sierra (88-89) (615556L)
SKU:615556L
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The Gibson 88-89 GMC C3500 Sierra 7.4L 3-inch Cat-Back Single Exhaust is a high-performance exhaust system designed to enhance engine output and overall vehicle efficiency. Constructed from durable stainless steel, this exhaust features a polished stainless tip for a professional appearance. It is engineered to improve acceleration, hill climbing, towing capacity, and passing power, with dyno testing confirming gains of up to 32 horsepower and 60 ft-lbs of torque. The system offers a hassle-free, bolt-on installation process that delivers a clean, factory-like finish, making it an ideal upgrade for serious enthusiasts seeking increased performance and a refined exhaust note.
This exhaust system is specifically designed for 1988-1989 GMC C3500 Sierra models equipped with a 7.4L engine. It exits behind the rear tire near the stock location, ensuring a seamless fit and appearance. Suitable for street use, towing, and performance driving, this kit includes all necessary components for straightforward installation. It serves as a direct replacement for the factory exhaust, providing improved flow and power without requiring extensive modifications. The Gibson cat-back system is an excellent choice for those looking to maximize their truck’s performance and aesthetic appeal.
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Overview
Overview
Gibson Exhaust
Fits 1988–1989 GMC C3500 Sierra 7.4L
Part #: 615556L
Overview
The Gibson 88-89 GMC C3500 Sierra 7.4L 3-inch Cat-Back Single Exhaust is designed to enhance your truck’s performance and sound. Crafted from durable stainless steel, this exhaust system is engineered for drivers seeking increased power, improved towing capacity, and a more aggressive exhaust note. Its bolt-on installation ensures a hassle-free upgrade that delivers professional-looking results, making it an ideal choice for enthusiasts and everyday drivers alike who want to maximize their vehicle’s potential. This exhaust system not only boosts horsepower and torque but also provides a sleek, polished stainless tip that complements your truck’s rugged aesthetic. Whether you're hauling heavy loads or enjoying spirited drives, this exhaust helps your vehicle perform at its best while adding a refined touch to its appearance.Key Features
This Gibson exhaust system features a high-quality stainless steel construction designed for longevity and corrosion resistance. Its 3-inch diameter pipe optimizes exhaust flow for better response and power delivery. The system exits behind the rear tire near the stock location, maintaining a factory-like appearance while providing noticeable performance gains. The polished stainless tip adds a stylish finishing touch, enhancing your truck’s overall look. Easy to install with standard tools, this system is built to support your vehicle’s performance needs without complicated modifications.Construction & Design
Constructed from premium stainless steel, this exhaust system is designed to withstand harsh conditions and resist rust. Its precise mandrel bends ensure smooth exhaust flow, reducing backpressure and maximizing efficiency. The polished stainless tip is crafted for durability and aesthetic appeal, providing a clean, professional finish.Performance & Response
This exhaust helps improve acceleration, hill climbing, towing, and passing power. Dyno-tested results have demonstrated increases of up to 32 horsepower and 60 ft-lbs of torque, supporting your vehicle’s performance enhancements. The system’s design promotes a deeper, more aggressive exhaust note that enhances driving enjoyment without excessive noise.Installation & Fitment
Designed for direct bolt-on installation, this exhaust system fits 1988–1989 GMC C3500 Sierra 7.4L models. It requires no cutting or welding, allowing for straightforward installation with basic hand tools. Proper fitment ensures a secure, leak-free connection and a professional appearance.What’s Included
The package includes the complete cat-back exhaust system with all necessary hardware for installation, ensuring a seamless upgrade process.
