{"product_id":"afe-apollo-gt-series-4-inch-409-stainless-steel-cat-back-exhaust-with-black-tip-part-number-49-44123-b","title":"aFe Apollo GT Series 4-Inch 409 Stainless Steel Cat-Back Exhaust with Black Tip, Part Number 49-44123-B","description":"This cat-back exhaust system is constructed of 4\" mandrel-bent 409 stainless steel tubing for maximum strength and durability. This system features a high-flow 409 stainless steel muffler, producing a deep sound. Finishing off this exhaust system is a 5\" diameter black 409 stainless steel intercooled clamp-on exhaust tip. The tip features an aFe POWER logo plate riveted on for a unique style. This system produces a deep sound unleashing all available horsepower and torque. Utilizing a factory style flange and hangers this system is a direct bolt-on system, which requires no cutting or modifications for a hassle-free installation. Utilizing state-of-the-art computer-aided design technology, this exhaust system is designed for custom, high tolerance factory fitment. 100% MIG-Welded for race-proven strength and durability.\nApollo GT Series 4 IN 409 Stainless Steel Cat-Back Exhaust System w\/ Black Tip GM 2500\/3500HD 20-26 V8-6.6L L8T\n\u003cul\u003e\n  \u003cli\u003e5\" Diameter Black 409 Stainless Steel Intercooled Clamp-On Exhaust Tip\u003c\/li\u003e\n  \u003cli\u003eAll Necessary Hardware is Included for a Hassle-Free Installation\u003c\/li\u003e\n  \u003cli\u003eConstructed from 4\" Mandrel-Bent 409 Stainless Steel Tubing\u003c\/li\u003e\n  \u003cli\u003eUtilizes Factory Style Flange and Hangers for a Secure Fit\u003c\/li\u003e\n  \u003cli\u003e100% MIG-Welded for Strength and Durability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe aFe Apollo GT Series 4-Inch 409 Stainless Steel Cat-Back Exhaust System is engineered for GM 2500HD and 3500HD trucks equipped with the 6.6L V8 L8T engine. Part Number 49-44123-B uses mandrel-bent 409 stainless steel tubing to promote smooth exhaust flow while providing the strength and corrosion resistance needed for demanding truck applications. The high-flow 409 stainless steel muffler produces a deep, aggressive exhaust tone while helping unleash available horsepower and torque.\u003c\/p\u003e\n\u003cp\u003eThis aFe exhaust system is designed as a direct bolt-on replacement using factory-style flanges and hangers, eliminating the need for cutting, welding, or other modifications during installation. Computer-aided design technology supports precise, high-tolerance fitment, while 100% MIG-welded construction delivers race-proven strength and long-term durability. The system is finished with a 5-inch black 409 stainless steel intercooled clamp-on exhaust tip featuring a riveted aFe POWER logo plate for a clean, performance-oriented appearance.\u003c\/p\u003e\n\u003ch3\u003eKey Product Specifications and Technical Data\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBrand: aFe\u003c\/li\u003e\n\u003cli\u003eSeries: Apollo GT\u003c\/li\u003e\n\u003cli\u003ePart Number: 49-44123-B\u003c\/li\u003e\n\u003cli\u003eExhaust Type: Cat-back exhaust system\u003c\/li\u003e\n\u003cli\u003eMaterial: 409 stainless steel\u003c\/li\u003e\n\u003cli\u003eTube Construction: Mandrel-bent tubing\u003c\/li\u003e\n\u003cli\u003eMuffler Type: High-flow stainless steel muffler\u003c\/li\u003e\n\u003cli\u003eExhaust Tip: Black stainless steel intercooled clamp-on tip\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cp\u003eThe box includes the Apollo GT cat-back exhaust components, black exhaust tip, and all necessary installation hardware.\u003c\/p\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eFits select 2020 Chevrolet Silverado 2500 HD, 2020 Chevrolet Silverado 3500 HD, and 2020 GMC Sierra 2500 HD and 3500 HD models with the 6.6L V8 L8T engine. Verify vehicle configuration and application details before ordering.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDurable 409 Stainless Steel Construction: Built with 4-inch mandrel-bent tubing for strength, corrosion resistance, and consistent exhaust flow.\u003c\/li\u003e\n\u003cli\u003eDeep Performance Sound: High-flow 409 stainless steel muffler produces a deep exhaust tone while supporting improved engine breathing.\u003c\/li\u003e\n\u003cli\u003eDirect Bolt-On Installation: Factory-style flanges and hangers help provide a secure fit without cutting, welding, or vehicle modifications.\u003c\/li\u003e\n\u003cli\u003eBlack Intercooled Exhaust Tip: Includes a 5-inch black 409 stainless steel clamp-on tip with a riveted aFe POWER logo plate for a finished appearance.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitments:\u003cbr\u003e\n2020 Chevrolet Silverado 2500 HD Custom\u003cbr\u003e\n2020 Chevrolet Silverado 2500 HD High Country\u003cbr\u003e\n2020 Chevrolet Silverado 2500 HD LT\u003cbr\u003e\n2020 Chevrolet Silverado 2500 HD LTZ\u003cbr\u003e\n2020 Chevrolet Silverado 2500 HD WT\u003cbr\u003e\n2020 Chevrolet Silverado 3500 HD High Country\u003cbr\u003e\n2020 Chevrolet Silverado 3500 HD LT\u003cbr\u003e\n2020 Chevrolet Silverado 3500 HD LTZ\u003cbr\u003e\n2020 Chevrolet Silverado 3500 HD WT\u003cbr\u003e\n2020 GMC Sierra 2500 HD AT4\u003cbr\u003e\n2020 GMC Sierra 2500 HD Base\u003cbr\u003e\n2020 GMC Sierra 2500 HD Denali\u003cbr\u003e\n2020 GMC Sierra 2500 HD SLE\u003cbr\u003e\n2020 GMC Sierra 2500 HD SLT\u003cbr\u003e\n2020 GMC Sierra 3500 HD AT4\u003cbr\u003e\n2020 GMC Sierra 3500 HD Base\u003cbr\u003e\n2020 GMC Sierra 3500 HD Denali\u003cbr\u003e\n2020 GMC Sierra 3500 HD SLE\u003cbr\u003e\n2020 GMC Sierra 3500 HD SLT\u003cbr\u003e\n2021 Chevrolet Silverado 2500 HD Custom\u003cbr\u003e\n2021 Chevrolet Silverado 2500 HD High Country\u003cbr\u003e\n2021 Chevrolet Silverado 2500 HD LT\u003cbr\u003e\n2021 Chevrolet Silverado 2500 HD LTZ\u003cbr\u003e\n2021 Chevrolet Silverado 2500 HD WT\u003cbr\u003e\n2021 Chevrolet Silverado 3500 HD High Country\u003cbr\u003e\n2021 Chevrolet Silverado 3500 HD LT\u003cbr\u003e\n2021 Chevrolet Silverado 3500 HD LTZ\u003cbr\u003e\n2021 Chevrolet Silverado 3500 HD WT\u003cbr\u003e\n2021 GMC Sierra 2500 HD AT4\u003cbr\u003e\n2021 GMC Sierra 2500 HD Base\u003cbr\u003e\n2021 GMC Sierra 2500 HD Denali\u003cbr\u003e\n2021 GMC Sierra 2500 HD SLE\u003cbr\u003e\n2021 GMC Sierra 2500 HD SLT\u003cbr\u003e\n2021 GMC Sierra 3500 HD AT4\u003cbr\u003e\n2021 GMC Sierra 3500 HD Base\u003cbr\u003e\n2021 GMC Sierra 3500 HD Denali\u003cbr\u003e\n2021 GMC Sierra 3500 HD SLE\u003cbr\u003e\n2021 GMC Sierra 3500 HD SLT\u003cbr\u003e\n2022 Chevrolet Silverado 2500 HD Custom\u003cbr\u003e\n2022 Chevrolet Silverado 2500 HD High Country\u003cbr\u003e\n2022 Chevrolet Silverado 2500 HD LT\u003cbr\u003e\n2022 Chevrolet Silverado 2500 HD LTZ\u003cbr\u003e\n2022 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