{"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","url":"https:\/\/fsdsupply.com\/products\/polar-diesel-2001-2007-chevrolet-gmc-duramax-6-6l-4-downpipe-back-stainless-exhaust","provider":"FSD Supply Co.","version":"1.0","type":"link"}