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The aFe Apollo GT Series 4" 409 stainless cat-back for 2020–2025 GM 2500/3500 HD V8 6.6L L8T is a direct bolt-on exhaust using factory-style flanges and hangers for no-cut installation. Mandrel-bent 4" tubing and a high-flow 409SS muffler deliver a deeper tone and strong flow, while a 5" polished clamp-on tip with riveted aFe POWER logo finishes the look. 100% MIG-welded for strength and durability.
aFe Apollo GT Series 3in 409SS Cat-Back Exhaust w/ Polished Tip 2020 GM 2500/3500HD V8 6.6L L8T
