{"title":"GM 6.6L Duramax LB7 (2001-2004.5) - Exhaust Systems","description":null,"products":[{"product_id":"2001-2007-duramax-4-downpipe-back-dual-exhaust-system-w-muffler-431102","title":"2001-2007 Duramax 4\" Downpipe Back Dual Exhaust System w\/ Muffler (431102)","description":"\u003ch2\u003e\u003cspan\u003eDescription\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cdiv class=\"scrollable-table\"\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eYear\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eMake\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2001-2007\u003cbr\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eGM\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eExtended Cab - Cab \u0026amp; Chassis - Short Box - Long Box\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eLBZ, LLY \u0026amp; LB7 w\/ 6.6L Duramax\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eMel's Manufacturing Exhausts are designed to fit all wheelbase \u0026amp; cab configurations unless otherwise specified.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 431102 is a 4\" Downpipe Back Dual Exhaust for the 2001-2007 Duramax Trucks. It replaces your OE components with a 4\" high-flow twin pipe system with a muffler for street applications.\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eJust like all of Mel's Manufacturings Exhaust kits, it will come with all the required clamps, pre-weld contour bent hangers, and stronger flanges to help you sail through the installation process.\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eIt not only sounds amazing but improves your fuel mileage, torque, and throttle response!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e\u003cspan\u003e 431102\u003c\/span\u003e\u003c\/p\u003e","brand":"FP","offers":[{"title":"Aluminized Steel","offer_id":44299645943923,"sku":"431102","price":1007.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/1588\/7219\/files\/2001-2007-Duramax-4-Downpipe-Back-Dual-Exhaust-System-w-Muffler-431102-Downpipe-Back-Exhaust-System-Mels-Manufacturing-431102-Canada.png?v=1771170251"},{"product_id":"2001-2007-duramax-4-downpipe-back-exhaust-system-w-muffler-431107-432107","title":"2001-2007 Duramax 4\" Downpipe Back Exhaust System w \/ Muffler (431107 \/ 432107)","description":"\u003ch2\u003e\u003cspan\u003eDescription\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cdiv class=\"scrollable-table\"\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eYear\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eMake\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2001-2007\u003c\/td\u003e\n\u003ctd\u003eGM\u003cbr\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eLBZ, LLY, \u0026amp; LB7 6.6L Duramax\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMel's Manufacturing Exhausts are designed to fit all wheelbase \u0026amp; cab configurations unless otherwise specified.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 431107\/432107 by Mel's Manufacturing is a 4\" turbo-back exhaust system for the 2001-2007 Duramax Trucks.\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eJust like all of Mel's Manufacturings Exhaust kits, it will come with all the required clamps, pre-weld contour bent hangers, and stronger flanges to help you sail through the installation process. This system will\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003ereplace your restrictive OE exhaust system with a 4\" high-flow exhaust system that not only sounds much better but also will improve mileage, torque, and throttle response!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e\u003cspan\u003e 431107\/432107\u003c\/span\u003e\u003c\/p\u003e","brand":"FP","offers":[{"title":"Aluminized","offer_id":44299645976691,"sku":"431107","price":895.99,"currency_code":"USD","in_stock":true},{"title":"Stainless","offer_id":44299646009459,"sku":"432107","price":1037.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/1588\/7219\/files\/2001-2007-Duramax-4-Downpipe-Back-Exhaust-System-w-Muffler-431107-432107-Downpipe-Back-Exhaust-System-Mels-Manufacturing-431107-Canada.png?v=1771161221"},{"product_id":"2001-2007-duramax-4-cat-back-exhaust-system-w-muffler-431108-432119","title":"2001-2007 Duramax 4\" Cat Back Exhaust System w \/ Muffler (431108 \/ 432119)","description":"\u003ch2\u003e\u003cspan\u003eDescription\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cdiv class=\"scrollable-table\"\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eYear\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eMake\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2001-2007\u003cbr\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eGM\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eLBZ, LLY, \u0026amp; LB7 6.6L Duramax\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMel's Manufacturing Exhausts are designed to fit all wheelbase \u0026amp; cab configurations unless otherwise specified.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 431108 \u0026amp; 432119 by Mel's Manufacturing is a 4\" Cat-Back exhaust system for the 2001-2005 GM trucks with the 6.6L Duramax. This system replaces your restrictive OE exhaust with a 4\" high-flow system with an in-line muffler from the catalytic converter back.\u003cspan\u003e Just like all of Mel's Manufacturings Exhaust kits, it will come with all the required clamps, pre-weld contour bent hangers, and stronger flanges to help you sail through the installation process.\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eIt not only sounds better but it will also improve your torque, throttle response, and mileage!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePart Number:\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e431108 \u0026amp; 432119\u003c\/span\u003e\u003c\/p\u003e","brand":"FP","offers":[{"title":"Aluminized","offer_id":44299646042227,"sku":"431108","price":810.99,"currency_code":"USD","in_stock":true},{"title":"Stainless","offer_id":44299646074995,"sku":"432119","price":977.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/1588\/7219\/files\/2001-2007-Duramax-4-Cat-Back-Exhaust-System-w-Muffler-431108-432119-Cat-Back-Exhaust-System-Mels-Manufacturing-Canada.png?v=1771161428"},{"product_id":"2001-2007-duramax-4-downpipe-back-exhaust-no-muffler-431112","title":"2001-2007 Duramax 4\" Downpipe Back Exhaust - No Muffler (431112)","description":"\u003ch2\u003e\u003cspan\u003eDescription\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cdiv class=\"scrollable-table\"\u003e\n\u003ctable width=\"100%\" style=\"height: 39.1876px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e\u003cstrong\u003eYear\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e\u003cstrong\u003eMake\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e\u003cstrong\u003eEngine\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e2001-2007\u003cbr\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003eGM\u003cbr\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e\u003cspan\u003eLBZ, LLY, \u0026amp; LB7 6.6L Duramax\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cbr\u003eMel's Manufacturing Exhausts are designed to fit all wheelbase \u0026amp; cab configurations unless otherwise specified.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 431112 is a 4\" downpipe back race exhaust system for the 2001-2007 Duramax Trucks. This will replace the restrictive OE exhaust system with a 4\" high-flow straight pipe exhaust system. This kit doesn't include a muffler and is intended for track applications.\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eJust like all of Mel's Manufacturing Exhaust kits, it will come with all the required clamps, pre-weld contour bent hangers, and stronger flanges to help you sail through the installation process.\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eIt not only sounds great but will also improve mileage, torque, and throttle response.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e\u003cspan\u003e 431112\u003c\/span\u003e\u003c\/p\u003e","brand":"FP","offers":[{"title":"Stainless","offer_id":44299646402675,"sku":"432112","price":1086.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/1588\/7219\/files\/2001-2007-Duramax-4-Downpipe-Back-Exhaust-No-Muffler-Canada.png?v=1771162013"},{"product_id":"2001-2004-5-duramax-5-downpipe-back-exhaust-w-muffler-531100-532100","title":"2001-2004.5 Duramax 5\" Downpipe Back Exhaust w \/ Muffler (531100 \/ 532100)","description":"\u003ch2\u003e\u003cspan\u003eDescription\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cdiv class=\"scrollable-table\"\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eYear\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eMake\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2001-2004.5\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eGM\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eGM LB7, LLY, w\/ 6.6L Duramax\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMel's Manufacturing Exhausts are designed to fit all wheelbase \u0026amp; cab configurations unless otherwise specified.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 531100 \u0026amp; 532114 is a 5\" Downpipe Back exhaust for the 2001-2004.5 Duramax Trucks. This will replace the restrictive exhaust system with a 5\" high-flow system with a high-flow muffler for street applications.\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eJust like all of Mel's Manufacturing exhaust kits, it will come with all the required clamps, pre-weld contour bent hangers, and stronger flanges to help you sail through the installation process. \u003c\/span\u003eThis exhaust not only sounds great but will help improve your mileage, torque, and throttle response in your Duramax!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e\u003cspan\u003e 531100 \u0026amp; 532100\u003c\/span\u003e\u003c\/p\u003e","brand":"FP","offers":[{"title":"Aluminized","offer_id":44299654070387,"sku":"531100","price":1047.99,"currency_code":"USD","in_stock":true},{"title":"Stainless","offer_id":44299654103155,"sku":"532100","price":1317.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/1588\/7219\/files\/2001-2004_5-Duramax-5-Downpipe-Back-Exhaust-w-Muffler-531100-532100-Downpipe-Back-Exhaust-System-Mels-Manufacturing-531100-Canada.png?v=1771133933"},{"product_id":"2001-2004-5-duramax-5-downpipe-back-exhaust-no-muffler-531111-532111","title":"2001-2004.5 Duramax 5\" Downpipe Back Exhaust - No Muffler (531111 \/ 532111)","description":"\u003ch2\u003e\u003cspan\u003eDescription\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cdiv class=\"scrollable-table\"\u003e\n\u003ctable width=\"100%\" style=\"height: 39.1876px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e\u003cstrong\u003eYear\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e\u003cstrong\u003eMake\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e\u003cstrong\u003eEngine\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e2001-2004.5\u003cbr\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e\u003cspan\u003eGM\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e\u003cspan\u003eLB7, LLY, w\/ 6.6L Duramax\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eMel's Manufacturing Exhausts are designed to fit all wheelbase \u0026amp; cab configurations unless otherwise specified.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 531111 \/ 532115 is a 5\" Downpipe Back exhaust for the 2001-2004.5 Duramax Trucks. It will replace the restrictive exhaust system with a 5\" straight pipe high-flow system with no muffler and is designed for race applications.\u003cspan\u003e Just like all of Mel's Manufacturings Exhaust kits, it will come with all the required clamps, pre-weld contour bent hangers, and stronger flanges to help you sail through the installation process.\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eThis exhaust not only sounds great but will help improve your mileage, torque, and throttle response in your Duramax!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e\u003cspan\u003e 531111 \/ 532111\u003c\/span\u003e\u003c\/p\u003e","brand":"FP","offers":[{"title":"Aluminized","offer_id":44299654234227,"sku":"531111","price":1026.99,"currency_code":"USD","in_stock":true},{"title":"Stainless","offer_id":44299654266995,"sku":"532111","price":1256.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/1588\/7219\/files\/2001-2004_5-Duramax-5-Downpipe-Back-Exhaust-No-Muffler-531111-532111-Downpipe-Back-Exhaust-System-Mels-Manufacturing-531111-Canada.png?v=1771134460"}],"url":"https:\/\/dirtydawgdiesel.com\/collections\/gm-6-6l-duramax-lb7-2001-2004-5-exhaust-systems.oembed","provider":"Dirty Dawg Diesel","version":"1.0","type":"link"}