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Flowmaster engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Flowmaster lineup with fast shipping and expert fitment support — order with confidence.
Embrace the iconic Flowmaster sound with the American Thunder Cat-Back Exhaust System, tailored for 2019-2021 GM 1500 pickup trucks equipped with the 5.3L engine. This system delivers a powerful, classic muscle car tone that enhances your truck's presence.
The American Thunder series is renowned for its deep, mellow, and aggressive exhaust note, reminiscent of classic performance vehicles. This cat-back system is designed to bolt directly onto your 2019-2021 GM 1500 5.3L, replacing the factory exhaust from the catalytic converter back for optimal performance and sound. The 3-inch diameter tubing ensures unrestricted exhaust flow, maximizing horsepower and torque gains. Featuring a dual rear exit with striking 4-inch black ceramic tips, this system adds a custom, aggressive look to the rear of your truck. Constructed from durable stainless steel, it guarantees long-lasting performance and resistance to corrosion. If you desire the legendary Flowmaster sound and a stylish upgrade for your GM truck, the American Thunder Cat-Back is an excellent choice. Purchase yours today at GGCRACING.
Other popular Flowmaster products customers consider together:
Flowmaster engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Flowmaster lineup with fast shipping and expert fitment support — order with confidence.
Embrace the iconic Flowmaster sound with the American Thunder Cat-Back Exhaust System, tailored for 2019-2021 GM 1500 pickup trucks equipped with the 5.3L engine. This system delivers a powerful, classic muscle car tone that enhances your truck's presence.
The American Thunder series is renowned for its deep, mellow, and aggressive exhaust note, reminiscent of classic performance vehicles. This cat-back system is designed to bolt directly onto your 2019-2021 GM 1500 5.3L, replacing the factory exhaust from the catalytic converter back for optimal performance and sound. The 3-inch diameter tubing ensures unrestricted exhaust flow, maximizing horsepower and torque gains. Featuring a dual rear exit with striking 4-inch black ceramic tips, this system adds a custom, aggressive look to the rear of your truck. Constructed from durable stainless steel, it guarantees long-lasting performance and resistance to corrosion. If you desire the legendary Flowmaster sound and a stylish upgrade for your GM truck, the American Thunder Cat-Back is an excellent choice. Purchase yours today at GGCRACING.
Other popular Flowmaster products customers consider together:
