{"product_id":"flowmaster-64-67-gm-a-body-3in-american-thunder-ss-crossmember-back-exhaust-system","title":"Flowmaster American Thunder SS 3in Crossmember-Back For Chevy Chevelle\/El Camino\/Pontiac GTO (64-67) (817202)","description":"\u003cp\u003eThe Flowmaster American Thunder SS Crossmember-Back Exhaust System is a high-performance dual exhaust setup designed for muscle cars from 1964 to 1967 GM A-Body models. Constructed from mandrel-bent stainless steel, this 3.00-inch system enhances engine performance by increasing horsepower and torque while providing a deep, aggressive exhaust note. It features an H-pipe crossover to balance exhaust pressures and reduce back-rap during deceleration, along with Super 40 Series mufflers that deliver a muscular tone capable of filling large tailpipes. The system is engineered for maximum durability and performance, offering improved throttle response, power, and fuel efficiency. All necessary hardware and components are included for straightforward installation, and it is backed by a lifetime limited warranty.\u003c\/p\u003e\n\u003cp\u003eDesigned specifically for 1964–1967 GM A-Body vehicles, this system is a direct bolt-on upgrade for high-horsepower applications seeking an aggressive sound and enhanced performance. It is suitable for street and performance use, providing a deep tone both inside and outside the vehicle. The kit includes all required parts for a hassle-free fitment, making it ideal for enthusiasts looking to upgrade their muscle car’s exhaust system. Compatibility is optimized for these model years and engine configurations, ensuring a reliable and powerful exhaust upgrade.\u003c\/p\u003e","brand":"Flowmaster","offers":[{"title":"Default Title","offer_id":52748116263199,"sku":"817202","price":1299.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0229\/3877\/files\/49864c9098f609a3222ebc8993717973L.jpg?v=1786061396","url":"https:\/\/shop.wheelflip.com\/products\/flowmaster-64-67-gm-a-body-3in-american-thunder-ss-crossmember-back-exhaust-system","provider":"WheelFlip","version":"1.0","type":"link"}