{"product_id":"afe-apollo-gt-series-4in-409ss-cat-back-20-21-gm-2500-3500hd-v8-6-6l-l8t-black-tip","title":"aFe 4in SS Cat-Back Exhaust | GM 2500\/3500HD V8 6.6L L8T (20-21) (49-44123-B)","description":"\u003cdiv class=\"dark-description-layout\" id=\"newdescr\"\u003e\n\u003cp\u003eaFe POWER introduces the all new Apollo GT Series single side exit axle-back exhaust system. This Apollo GT Series muffler delete is designed with a black exhaust tip with an aFe POWER badge for a unique, aggressive look. The tip is constructed from stainless steel for durability. The exhaust system is constructed from 3\" MIG-welded, mandrel-bent stainless steel tubing for maximum flow. The performance muffler delete exhaust system includes all necessary hardware and clamps for a hassle-free install, with no cutting required, making it a true bolt on system.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eIncreases horsepower and torque\u003c\/li\u003e \u003cli\u003eImproves performance\u003c\/li\u003e \u003cli\u003eLowers exhaust gas temperature\u003c\/li\u003e \u003cli\u003eFlow bench and dyno tested\u003c\/li\u003e \u003cli\u003eWelded hangers with swaged ends\u003c\/li\u003e \u003cli\u003eSlotted and swedged ends\u003c\/li\u003e \u003cli\u003ePremium quality band clamps\u003c\/li\u003e \u003cli\u003eBacked by a 2-year limited warranty\u003c\/li\u003e \u003cli\u003eProudly made in the USA\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eA performance exhaust system is one of the most common ways of improving a vehicle's operation. The theory is simple; just reduce restriction to increase exhaust flow and you gain power. But all exhaust systems are not created equal; in reality there's more to it than just selling some sewer pipe sized tubes.\u003c\/p\u003e \u003cp\u003eaFe tests its systems on the flow bench and the dynamometer to determine the right pipe size and muffler construction. Then they mandrel bend the pipes to ensure they maintain their shape and size throughout the entire length, to provide smooth, unrestricted airflow. Tubes that are not mandrel bent can lose up to 20% of their diameter in sharp bends. Some systems also include a straight muffler delete pipe if a more aggressive sound and maximum flow is desired. A typical aFe system will increase exhaust flow by up to 29% and lower EGT (Exhaust Gas Temperature) by up to 100º, with a corresponding improvement in power and performance.\u003c\/p\u003e \u003cp\u003eBut performance is only part of the equation. A quality exhaust system should be easy to install and made to last. The muffler and all pipes of the Apollo GT system are constructed from durable 409 stainless steel. To ensure a tight seal, slotted and swedged ends are used whenever possible. When used with the supplied premium quality band clamps, the tightest, leak-free seal is the result. Every hanger is thoroughly welded on each side to ensure a strong attachment and the hangers also feature swaged bayonet ends to lock in place once installed.\u003c\/p\u003e \u003ch4\u003eDETAILS:\u003c\/h4\u003e \u003cul\u003e \u003cli\u003eConstructed from 4\" Mandrel-Bent 409 Stainless Steel Tubing\u003c\/li\u003e \u003cli\u003e5\" Diameter Black 409 Stainless Steel Intercooled Clamp-On Exhaust Tip\u003c\/li\u003e \u003cli\u003eUtilizes Factory Style Flange and Hangers for a Secure Fit\u003c\/li\u003e \u003cli\u003e100% MIG-Welded for Strength and Durability\u003c\/li\u003e \u003cli\u003eAll Necessary Hardware is Included for a Hassle-Free Installation\u003c\/li\u003e \u003c\/ul\u003e\n\u003c\/div\u003e","brand":"aFe","offers":[{"title":"Default Title","offer_id":48093102506222,"sku":"49-44123-B","price":820.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0794\/1996\/5678\/files\/afe-4in-ss-cat-back-exhaust-gm-25003500hd-v8-66l-l8t-20-21-49-44123-b-exhaust-mufflers-tips-7175160.jpg?v=1782892638","url":"https:\/\/www.ironridgeoffroad.com\/products\/afe-apollo-gt-series-4in-409ss-cat-back-20-21-gm-2500-3500hd-v8-6-6l-l8t-black-tip","provider":"Iron Ridge Offroad","version":"1.0","type":"link"}