This Cat-back exhaust is for 2019-2023 Ram 1500 with 5.7L V8 engines. It is constructed from stainless steel for lightweight, strength and superior corrosion resistance. It uses a high flow straight through muffler to provide a deep sporty tone and produces an extra 14 HP and 21 ft.-lb. torque. This system includes 4-1/2 inch stainless steel exhaust tips to deliver custom sound and appearance.