{"product_id":"3-turbo-outlet-downpipe-for-2001-2004-lb7-6-6l-duramax","title":"3'' Turbo Outlet Downpipe for 2001–2004 LB7 6.6L Duramax","description":"\u003ch2 data-end=\"539\" data-start=\"174\"\u003e3'' Turbo Outlet Downpipe for 2001–2004 LB7 6.6L Duramax\u003c\/h2\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0752\/1789\/5647\/files\/01-04_duramax_3_Downpipe_Exhaust_1.png?v=1772444485\"\u003e\u003c\/p\u003e\n\u003cp data-end=\"539\" data-start=\"174\"\u003eUnlock improved turbo performance and exhaust efficiency with our\u003cstrong data-end=\"283\" data-start=\"240\"\u003e 3-Inch Turbo Outlet Downpipe\u003c\/strong\u003e for 2001–2004 6.6L Duramax LB7 trucks. Designed as a direct replacement for the restrictive factory downpipe, this upgraded 3'' straight-through design increases exhaust flow, lowers backpressure, and helps reduce exhaust gas temperatures (EGT) under load.\u003c\/p\u003e\n\u003cp data-end=\"930\" data-start=\"541\"\u003eThe factory LB7 downpipe features a flattened, restrictive oval section that limits turbo efficiency. Our performance downpipe eliminates this bottleneck, allowing smoother exhaust flow directly from the turbocharger. The result is quicker turbo spool-up, improved throttle response, and enhanced overall drivability—especially beneficial for towing and heavy-duty applications.\u003c\/p\u003e\n\u003cp data-end=\"1104\" data-start=\"932\"\u003eConstructed from durable 201 stainless steel, this downpipe is built to withstand high heat and harsh operating conditions while maintaining long-term structural integrity.\u003c\/p\u003e\n\u003chr data-end=\"1109\" data-start=\"1106\"\u003e\n\u003ch3 data-end=\"1123\" data-start=\"1111\"\u003eFitment\u003c\/h3\u003e\n\u003cul data-end=\"1334\" data-start=\"1125\"\u003e\n\u003cli data-end=\"1182\" data-start=\"1125\"\u003e\n\u003cp data-end=\"1182\" data-start=\"1127\"\u003e2001–2004 Chevrolet Silverado 2500HD \/ 3500HD 6.6L Duramax LB7\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1287\" data-start=\"1239\"\u003e\n\u003cp data-end=\"1287\" data-start=\"1241\"\u003e2001–2004 GMC Sierra 2500HD \/ 3500HD 6.6L Duramax LB7\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"1339\" data-start=\"1336\"\u003e\n\u003ch3 data-end=\"1360\" data-start=\"1341\"\u003eSpecifications\u003c\/h3\u003e\n\u003cul data-end=\"1635\" data-start=\"1362\"\u003e\n\u003cli data-end=\"1386\" data-start=\"1362\"\u003e\n\u003cp data-end=\"1386\" data-start=\"1364\"\u003e\u003cstrong data-end=\"1377\" data-start=\"1364\"\u003eDiameter:\u003c\/strong\u003e 3-Inch\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1424\" data-start=\"1387\"\u003e\n\u003cp data-end=\"1424\" data-start=\"1389\"\u003e\u003cstrong data-end=\"1402\" data-start=\"1389\"\u003eMaterial:\u003c\/strong\u003e 201 Stainless Steel\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1470\" data-start=\"1425\"\u003e\n\u003cp data-end=\"1470\" data-start=\"1427\"\u003e\u003cstrong data-end=\"1438\" data-start=\"1427\"\u003eDesign:\u003c\/strong\u003e Straight-Through Mandrel Bent\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1529\" data-start=\"1471\"\u003e\n\u003cp data-end=\"1529\" data-start=\"1473\"\u003e\u003cstrong data-end=\"1490\" data-start=\"1473\"\u003eInstallation:\u003c\/strong\u003e Direct Bolt-On Using Factory Flanges\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1557\" data-start=\"1530\"\u003e\n\u003cp data-end=\"1557\" data-start=\"1532\"\u003e\u003cstrong data-end=\"1552\" data-start=\"1532\"\u003eTuning Required:\u003c\/strong\u003e No\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1635\" data-start=\"1558\"\u003e\n\u003cp data-end=\"1635\" data-start=\"1560\"\u003e\u003cstrong data-end=\"1575\" data-start=\"1560\"\u003eCompliance:\u003c\/strong\u003e Not CARB or EPA Certified – Off-Road\/Competition Use Only\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"1640\" data-start=\"1637\"\u003e\n\u003ch3 data-end=\"1659\" data-start=\"1642\"\u003eKey Features\u003c\/h3\u003e\n\u003ch4 data-end=\"1707\" data-start=\"1661\"\u003e3-Inch High-Flow Straight-Through Design\u003c\/h4\u003e\n\u003cp data-end=\"1862\" data-start=\"1708\"\u003eProvides approximately 20–25% more flow area compared to the restrictive OEM flattened pipe, dramatically improving exhaust velocity and turbo efficiency.\u003c\/p\u003e\n\u003ch4 data-end=\"1902\" data-start=\"1864\"\u003eReduced Backpressure \u0026amp; Lower EGT\u003c\/h4\u003e\n\u003cp data-end=\"2046\" data-start=\"1903\"\u003eImproved exhaust flow helps reduce exhaust gas temperatures under heavy towing or performance driving conditions, promoting engine reliability.\u003c\/p\u003e\n\u003ch4 data-end=\"2072\" data-start=\"2048\"\u003eFaster Turbo Spool\u003c\/h4\u003e\n\u003cp data-end=\"2176\" data-start=\"2073\"\u003eMinimized restriction at the turbo outlet allows for quicker boost response and improved throttle feel.\u003c\/p\u003e\n\u003ch4 data-end=\"2201\" data-start=\"2178\"\u003eDirect OE Fitment\u003c\/h4\u003e\n\u003cp data-end=\"2321\" data-start=\"2202\"\u003eEngineered to match factory flange dimensions and bolt locations for a simple, no-weld installation using OEM hardware.\u003c\/p\u003e\n\u003ch4 data-end=\"2354\" data-start=\"2323\"\u003eHeat Shield Wrap Included\u003c\/h4\u003e\n\u003cp data-end=\"2507\" data-start=\"2355\"\u003eComes with thermal wrap to reduce radiant heat transfer within the engine bay, helping protect surrounding wiring, brake lines, and firewall components.\u003c\/p\u003e\n\u003ch4 data-end=\"2536\" data-start=\"2509\"\u003eEnhanced Exhaust Tone\u003c\/h4\u003e\n\u003cp data-end=\"2622\" data-start=\"2537\"\u003eDelivers a deeper, more aggressive sound profile while maintaining daily drivability.\u003c\/p\u003e\n\u003chr data-end=\"2627\" data-start=\"2624\"\u003e\n\u003ch3 data-end=\"2652\" data-start=\"2629\"\u003eInstallation Notes\u003c\/h3\u003e\n\u003cp data-end=\"2841\" data-start=\"2654\"\u003eThis is a direct bolt-on upgrade that installs using factory mounting points and hardware. No welding or ECU tuning is required. Professional installation is recommended for best results.\u003c\/p\u003e\n\u003chr data-end=\"2846\" data-start=\"2843\"\u003e\n\u003ch3 data-end=\"2875\" data-start=\"2848\"\u003eWhy Choose DPFexhaust?\u003c\/h3\u003e\n\u003cp data-end=\"3178\" data-start=\"2877\"\u003eDPFexhaust performance exhaust components are engineered to maximize diesel turbo efficiency while maintaining durability under extreme conditions. Our Duramax downpipes are designed to eliminate factory bottlenecks and deliver measurable improvements in flow, boost response, and overall performance.\u003c\/p\u003e\n\u003chr data-end=\"2846\" data-start=\"2843\"\u003e\n\u003ch3\u003eFast Shipping Policy\u003c\/h3\u003e\n\u003cp class=\"p\"\u003e\u003cspan\u003eYour order will be dispatched within \u003c\/span\u003e\u003cb\u003e\u003cspan class=\"16\"\u003e1-2 business days\u003c\/span\u003e\u003c\/b\u003e\u003cspan\u003e, and the package will arrive within your order's estimated date. \u003c\/span\u003e\u003cspan\u003e\u003ca href=\"https:\/\/dpfexhaust.com\/pages\/copy-of-shipping-policy\"\u003e\u003cu\u003e\u003cspan class=\"15\"\u003eClick for Shipping Policy.\u003c\/span\u003e\u003c\/u\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 class=\"p\"\u003e\n\u003cspan\u003e\u003c\/span\u003eEasy Return Policy\u003c\/h3\u003e\n\u003cp class=\"p\"\u003e\u003cspan\u003eEvery order comes with a \u003c\/span\u003e\u003cb\u003e\u003cspan class=\"16\"\u003e14-day free return\u003c\/span\u003e\u003c\/b\u003e\u003cspan\u003e, which means you don't have to pay for a return slip. \u003c\/span\u003e\u003cspan\u003e\u003ca href=\"https:\/\/dpfexhaust.com\/pages\/refund-policy\"\u003e\u003cu\u003e\u003cspan class=\"15\"\u003eClick for Return Policy.\u003c\/span\u003e\u003c\/u\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"DPFexhaust","offers":[{"title":"Black","offer_id":48556638339295,"sku":"#11941","price":149.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0752\/1789\/5647\/files\/01-04_duramax_3_Downpipe_Exhaust_0255a23e-598d-4c1f-9710-773694e10266.png?v=1772443108","url":"https:\/\/dpfexhaust.com\/products\/3-turbo-outlet-downpipe-for-2001-2004-lb7-6-6l-duramax","provider":"DPFexhaust","version":"1.0","type":"link"}