{"title":"2011-2016 6.6L LML Duramax \u003e Engine \u0026 Performance \u003e Exhaust","description":null,"products":[{"product_id":"polar-diesel-2001-2007-chevrolet-gmc-duramax-6-6l-4-downpipe-back-stainless-exhaust","title":"Polar Diesel 2001-2007 Chevrolet\/GMC Duramax 6.6L 4\" Downpipe Back Stainless Exhaust","description":"\u003ch2\u003e2001–2007 GM 6.6L Duramax 4\" Downpipe Back Stainless Steel Exhaust (Muffler \u0026amp; Muffler Less)\u003c\/h2\u003e\n\n\u003cp\u003e\nUpgrade your 2001–2007 GM 2500HD \/ 3500HD 6.6L Duramax with this 4-inch downpipe back stainless steel exhaust system. \nDesigned to increase exhaust flow and lower EGTs, this system improves turbo spool, throttle response, and overall performance \nwhile delivering the deep diesel sound Duramax owners want.\n\u003c\/p\u003e\n\n\u003cp\u003e\nBuilt with pre-welded contour bends, a machined turbo flange, and heavy-duty TorcTite® clamps, installation is simple and secure. \nAvailable with a muffler or muffler less option to match your preferred sound level and performance goals.\n\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e4\" Downpipe Back Stainless Steel Construction\u003c\/li\u003e\n  \u003cli\u003eWith Muffler or Muffler Less Options\u003c\/li\u003e\n  \u003cli\u003eIncreased Horsepower \u0026amp; Torque Potential\u003c\/li\u003e\n  \u003cli\u003eLower Exhaust Gas Temperatures (EGTs)\u003c\/li\u003e\n  \u003cli\u003eMachined Turbo Flange\u003c\/li\u003e\n  \u003cli\u003eContour Bent Hangers\u003c\/li\u003e\n  \u003cli\u003eTorcTite® Clamps Included\u003c\/li\u003e\n  \u003cli\u003eNo Bungs\u003c\/li\u003e\n  \u003cli\u003eSingle Side Exit\u003c\/li\u003e\n  \u003cli\u003eDirect Bolt-On Installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003e\nFits 2001–2007 GM 2500HD \u0026amp; 3500HD 6.6L Duramax\u003cbr\u003e\nExtended Cab \/ Crew Cab\u003cbr\u003e\nShort Bed \/ Long Bed\u003cbr\u003e\nDually Models\n\u003c\/p\u003e","brand":"Polar Diesel","offers":[{"title":"No Muffler","offer_id":48313848135899,"sku":"432112","price":827.0,"currency_code":"USD","in_stock":true},{"title":"With Muffler","offer_id":48313848168667,"sku":"432107","price":871.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0403\/5667\/5751\/files\/firstgen5.9.webp?v=1772218289"},{"product_id":"polar-diesel-2007-5-2010-chevrolet-gmc-duramax-6-6l-stainless-exhaust","title":"Polar Diesel 2007.5-2010 Chevrolet\/GMC Duramax 6.6L Stainless exhaust","description":"\u003ch2\u003e2007.5–2010 Duramax 6.6L Polar Diesel Exhaust System – 4\" \u0026amp; 5\" Options (Muffler \u0026amp; Muffler Less)\u003c\/h2\u003e\n\n\u003cp\u003e\nUpgrade your \u003cstrong\u003e2007.5–2010 Chevrolet \/ GMC 2500HD \u0026amp; 3500HD 6.6L Duramax\u003c\/strong\u003e with a high-performance Polar Diesel exhaust system, available in both \u003cstrong\u003e4-inch and 5-inch\u003c\/strong\u003e configurations. Built from durable T409 stainless steel, these exhaust kits are engineered to handle harsh conditions while delivering the power, sound, and reliability your Duramax demands.\n\u003c\/p\u003e\n\n\u003cp\u003e\nDesigned for maximum exhaust flow, reduced EGTs, and improved turbo efficiency, Polar exhaust systems help increase horsepower, torque, and fuel mileage. Choose between \u003cstrong\u003emuffler and muffler less options\u003c\/strong\u003e to customize your truck’s exhaust tone and performance level.\n\u003c\/p\u003e\n\n\u003cp\u003e\nEach system is built for a hassle-free installation with precision flanges, pre-bent exhaust hangers, and heavy-duty stainless lap joint clamps for a secure, leak-free fit.\n\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eAvailable in 4\" or 5\" Exhaust Systems\u003c\/li\u003e\n  \u003cli\u003eMuffler \u0026amp; Muffler Less Options\u003c\/li\u003e\n  \u003cli\u003eT409 Stainless Steel Construction\u003c\/li\u003e\n  \u003cli\u003eReduced Exhaust Gas Temperatures (EGTs)\u003c\/li\u003e\n  \u003cli\u003eImproved Fuel Mileage \u0026amp; Throttle Response\u003c\/li\u003e\n  \u003cli\u003eIncreased Horsepower \u0026amp; Torque Potential\u003c\/li\u003e\n  \u003cli\u003eStainless Steel Lap Joint Clamps\u003c\/li\u003e\n  \u003cli\u003ePre-Bent Exhaust Hangers\u003c\/li\u003e\n  \u003cli\u003ePrecision Fit \u0026amp; Finish\u003c\/li\u003e\n  \u003cli\u003eNo Bungs\u003c\/li\u003e\n  \u003cli\u003eEasy Bolt-On Installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003e\nFits 2007.5–2010 Chevrolet \/ GMC 2500HD \u0026amp; 3500HD 6.6L Duramax\u003cbr\u003e\nWill NOT fit Cab \u0026amp; Chassis models\n\u003c\/p\u003e\n\n\u003ch3\u003eImportant Note\u003c\/h3\u003e\n\u003cp\u003e\nThis product is designed exclusively for offroad and race use only. It is not intended for use on public roads or highways. Installation requires appropriate aftermarket tuning and supporting modifications. The manufacturer and sellers are not responsible for damages, injuries, or legal consequences resulting from improper use or installation. Use at your own risk.\n\u003c\/p\u003e","brand":"Polar Diesel","offers":[{"title":"4\" \/ No Muffler","offer_id":48313879757019,"sku":"PD-1-31922142","price":697.5,"currency_code":"USD","in_stock":true},{"title":"4\" \/ With Muffler","offer_id":48313879789787,"sku":"PD-1-31922141","price":827.0,"currency_code":"USD","in_stock":true},{"title":"5\" \/ No Muffler","offer_id":48313879822555,"sku":"PD-1-31922152","price":787.04,"currency_code":"USD","in_stock":true},{"title":"5\" \/ With Muffler","offer_id":48313879855323,"sku":"PD-1-31922151","price":946.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0403\/5667\/5751\/files\/6.6duramac.webp?v=1772465877"}],"url":"https:\/\/fsdsupply.com\/collections\/2011-2016-6-6l-lml-duramax-engine-performance-exhaust.oembed","provider":"FSD Supply Co.","version":"1.0","type":"link"}