{"product_id":"dieselr-aluminized-4-inch-cat-back-exhaust-single-gm-2500-3500-6-6l-duramax-lb7-2001-2004-5","title":"Dieselr Aluminized 4\" CAT Back Exhaust Single | 2500\/3500 6.6L GM DURAMAX LB7 (2001-2004.5)","description":"\u003cp data-start=\"824\" data-end=\"1190\"\u003eThe \u003cstrong data-start=\"828\" data-end=\"904\"\u003eDieselr Aluminized 4\" Cat Back Exhaust Single (2001–2004.5 6.6L Duramax LB7)\u003c\/strong\u003e is built for \u003cstrong data-start=\"918\" data-end=\"962\"\u003eChevy Silverado and GMC Sierra 2500\/3500\u003c\/strong\u003e owners who need a reliable, performance-focused exhaust system that lasts. Constructed from \u003cstrong data-start=\"1055\" data-end=\"1093\"\u003e4-inch heavy-duty aluminized steel\u003c\/strong\u003e, it provides smoother exhaust flow, a refined diesel tone, and long-term corrosion resistance.\u003c\/p\u003e\n\u003cp data-start=\"1192\" data-end=\"1542\"\u003eEach Dieselr cat back system is \u003cstrong data-start=\"1224\" data-end=\"1240\"\u003emandrel-bent\u003c\/strong\u003e for consistent, unrestricted flow and \u003cstrong data-start=\"1279\" data-end=\"1299\"\u003eprecision-welded\u003c\/strong\u003e for durability. The aluminized finish withstands heat, moisture, and road salt, making it ideal for daily-driven or work-heavy Duramax trucks. Installation is simple with \u003cstrong data-start=\"1471\" data-end=\"1495\"\u003eOEM hanger alignment\u003c\/strong\u003e, ensuring a clean fit without modifications.\u003c\/p\u003e\n\u003cp data-start=\"1544\" data-end=\"1724\"\u003eEngineered and tested on real 6.6L Duramax platforms, Dieselr’s aluminized cat back systems deliver dependable flow and fitment you can trust—no noise, no gimmicks, just results.\u003c\/p\u003e\n\u003cp data-start=\"1726\" data-end=\"1744\"\u003e\u003cstrong data-start=\"1726\" data-end=\"1742\"\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"1747\" data-end=\"1807\"\u003e4\" aluminized steel construction for long-term reliability\u003c\/li\u003e\n\u003cli data-start=\"1810\" data-end=\"1860\"\u003eMandrel bends for smooth, efficient exhaust flow\u003c\/li\u003e\n\u003cli data-start=\"1863\" data-end=\"1905\"\u003eOEM hanger fitment for easy installation\u003c\/li\u003e\n\u003cli data-start=\"1908\" data-end=\"1959\"\u003eCorrosion-resistant finish for lasting durability\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Dieselr Parts","offers":[{"title":"Default Title","offer_id":53172147191968,"sku":"256-801134","price":742.49,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0621\/6866\/2176\/files\/256-801134-dieselr-aluminized-4-inch-cat-back-exhaust-single-gm-2500-3500-6-6l-duramax-lb7-2001-2004-5-with-muffler.webp?v=1768345012","url":"https:\/\/www.protechdieselcenter.com\/products\/dieselr-aluminized-4-inch-cat-back-exhaust-single-gm-2500-3500-6-6l-duramax-lb7-2001-2004-5","provider":"Protech Diesel Center","version":"1.0","type":"link"}