{"product_id":"flowmaster-01-04-gm-2500hd-3500hd-american-thunder-ss-cat-back-exhaust-system","title":"Flowmaster 01-07 GM 2500HD\/3500HD American Thunder SS Cat-Back For GMC Sierra 3500HD\/Chevy Silverado (817328)","description":"\u003cp\u003eThe Flowmaster American Thunder SS Cat-Back Exhaust System is a performance upgrade designed for 2001-2006 (2007 Classic) Chevrolet Silverado and GMC Sierra 2500HD\/3500HD models equipped with 6.0L or 8.1L engines. Constructed with 409 stainless steel, this system features a dual inlet 50 Series Big Block muffler that provides a deep, powerful exterior tone while maintaining a moderate interior sound. It enhances throttle response, power, and fuel efficiency, offering a subtle custom appearance with a polished 4.00-inch stainless steel tip embossed with the Flowmaster logo. The system includes a large aluminum heat shield, stainless clamps, and custom bent tailpipe, ensuring durability and a refined look. Designed for performance enthusiasts, it delivers a deep, aggressive sound without being overly loud, making it suitable for daily driving and towing.\u003c\/p\u003e\n\u003cp\u003eThis bolt-on system attaches directly behind the catalytic converter and exits behind the right rear wheel, utilizing factory hanger locations for straightforward installation. It is compatible with 2001-2006 (2007 Classic) GM trucks with 6.0L or 8.1L engines, serving as a direct replacement or upgrade for stock exhausts. The kit includes all necessary hardware, parts, and instructions for easy installation. Ideal for street use, towing, and performance enhancement, this system combines quality craftsmanship with a lifetime limited warranty from Flowmaster, ensuring long-lasting performance and sound quality.\u003c\/p\u003e","brand":"Flowmaster","offers":[{"title":"Default Title","offer_id":52748118786335,"sku":"817328","price":899.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0229\/3877\/files\/577b1e4ffa1e644866a35c40f59ecd1bL.jpg?v=1786061402","url":"https:\/\/shop.wheelflip.com\/products\/flowmaster-01-04-gm-2500hd-3500hd-american-thunder-ss-cat-back-exhaust-system","provider":"WheelFlip","version":"1.0","type":"link"}