{"product_id":"4-5-stainless-steel-diesel-muffler-for-cummins-duramax-powerstroke","title":"4''\/5'' Stainless Steel Diesel Performance Muffler | for Cummins, Duramax, Powerstroke","description":"\u003ch2\u003e4''\/5'' Stainless Steel Diesel Performance Muffler | for Cummins, Duramax, Powerstroke\u003c\/h2\u003e\n\u003cp data-end=\"744\" data-start=\"449\"\u003eRefine your truck’s exhaust tone while maintaining strong performance with \u003cstrong data-end=\"569\" data-start=\"528\"\u003eDiesel Performance Muffler\u003c\/strong\u003e. Designed for serious diesel enthusiasts, this straight-through muffler enhances exhaust flow, deepens sound, and reduces unwanted interior drone — without sacrificing power.\u003c\/p\u003e\n\u003cp data-end=\"915\" data-start=\"746\"\u003eAvailable in \u003cstrong data-end=\"796\" data-start=\"759\"\u003e4-inch and 5-inch inlet diameters\u003c\/strong\u003e, you can select the ideal size for your build, whether it’s a daily-driven tow rig or a high-output performance truck.\u003c\/p\u003e\n\u003chr data-end=\"920\" data-start=\"917\"\u003e\n\u003ch3 data-end=\"931\" data-start=\"922\"\u003eFitment\u003c\/h3\u003e\n\u003cp data-end=\"1003\" data-start=\"933\"\u003eEngineered for universal diesel exhaust applications, compatible with:\u003c\/p\u003e\n\u003cul data-end=\"1098\" data-start=\"1005\"\u003e\n\u003cli data-end=\"1026\" data-start=\"1005\"\u003e\n\u003cp data-end=\"1026\" data-start=\"1007\"\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003ca href=\"https:\/\/dpfexhaust.com\/collections\/ram-cummins\" target=\"_blank\" title=\"ram cummins collection page\" style=\"color: rgb(43, 0, 255);\" rel=\"noopener\"\u003eDodge Ram Cummins\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1054\" data-start=\"1027\"\u003e\n\u003cp data-end=\"1054\" data-start=\"1029\"\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003ca href=\"https:\/\/dpfexhaust.com\/collections\/gm-duramax\" target=\"_blank\" title=\"gm duramax collection page\" style=\"color: rgb(43, 0, 255);\" rel=\"noopener\"\u003eChevy Silverado Duramax\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1077\" data-start=\"1055\"\u003e\n\u003cp data-end=\"1077\" data-start=\"1057\"\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003ca href=\"https:\/\/dpfexhaust.com\/collections\/gm-duramax\" target=\"_blank\" title=\"gm duramax collection page\" style=\"color: rgb(43, 0, 255);\" rel=\"noopener\"\u003eGMC Sierra Duramax\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1098\" data-start=\"1078\"\u003e\n\u003cp data-end=\"1098\" data-start=\"1080\"\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003ca href=\"https:\/\/dpfexhaust.com\/collections\/ford-powerstroke\" target=\"_blank\" title=\"ford powerstroke collection page\" style=\"color: rgb(43, 0, 255);\" rel=\"noopener\"\u003eFord Powerstroke\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"1167\" data-start=\"1100\"\u003e(Compatible with custom exhaust systems using 4.0'' or 5.0'' piping.)\u003c\/p\u003e\n\u003cp data-end=\"1198\" data-start=\"1169\"\u003e\u003cstrong data-end=\"1196\" data-start=\"1169\"\u003eInlet Diameter Options:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"1224\" data-start=\"1199\"\u003e\n\u003cli data-end=\"1211\" data-start=\"1199\"\u003e\n\u003cp data-end=\"1211\" data-start=\"1201\"\u003e4.0 Inch\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1224\" data-start=\"1212\"\u003e\n\u003cp data-end=\"1224\" data-start=\"1214\"\u003e5.0 Inch\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"1229\" data-start=\"1226\"\u003e\n\u003ch3 data-end=\"1257\" data-start=\"1231\"\u003eKey Performance Features\u003c\/h3\u003e\n\u003cp data-end=\"1290\" data-start=\"1259\"\u003e\u003cstrong\u003e✔ Straight-Through Flow Path\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"1479\" data-start=\"1292\"\u003eThe internal perforated core allows exhaust gases to flow freely with minimal restriction. This reduces backpressure and supports improved throttle response and overall engine efficiency.\u003c\/p\u003e\n\u003cp data-end=\"1512\" data-start=\"1481\"\u003e\u003cstrong\u003e✔ Deep, Throaty Diesel Sound\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"1685\" data-start=\"1514\"\u003eEnhances your truck’s exhaust note with a rich, aggressive tone — without excessive rasp. Ideal for drivers who want a powerful sound without overwhelming cabin resonance.\u003c\/p\u003e\n\u003cp data-end=\"1714\" data-start=\"1687\"\u003e\u003cstrong\u003e✔ Reduced Interior Drone\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"1912\" data-start=\"1716\"\u003eAdvanced internal stainless steel mesh and high-temperature fiberglass packing help absorb harsh frequencies and unwanted interior resonance, delivering a more controlled sound at cruising speeds.\u003c\/p\u003e\n\u003cp data-end=\"1941\" data-start=\"1914\"\u003e\u003cstrong\u003e✔ Non-Directional Design\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"2062\" data-start=\"1943\"\u003eFully reversible construction allows installation in either direction, making fitment simple for custom exhaust setups.\u003c\/p\u003e\n\u003cp data-end=\"2110\" data-start=\"2064\"\u003e\u003cstrong\u003e✔ Durable T409 Stainless Steel Construction\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"2285\" data-start=\"2112\"\u003e\n\u003cli data-end=\"2156\" data-start=\"2112\"\u003e\n\u003cp data-end=\"2156\" data-start=\"2114\"\u003eCorrosion-resistant T409 stainless steel\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2219\" data-start=\"2157\"\u003e\n\u003cp data-end=\"2219\" data-start=\"2159\"\u003eBuilt to withstand heat cycles and harsh diesel conditions\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2285\" data-start=\"2220\"\u003e\n\u003cp data-end=\"2285\" data-start=\"2222\"\u003eLong-lasting performance in towing and high-load applications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"2290\" data-start=\"2287\"\u003e\n\u003ch3 data-end=\"2322\" data-start=\"2292\"\u003e4'' vs 5'' Muffler Comparison\u003c\/h3\u003e\n\u003cp data-end=\"2342\" data-start=\"2324\"\u003e\u003cstrong\u003e4-Inch Muffler\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"2465\" data-start=\"2343\"\u003e\n\u003cli data-end=\"2385\" data-start=\"2343\"\u003e\n\u003cp data-end=\"2385\" data-start=\"2345\"\u003eIdeal for stock to mildly tuned trucks\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2422\" data-start=\"2386\"\u003e\n\u003cp data-end=\"2422\" data-start=\"2388\"\u003eBalanced tone with reduced drone\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2465\" data-start=\"2423\"\u003e\n\u003cp data-end=\"2465\" data-start=\"2425\"\u003eExcellent for daily driving and towing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"2485\" data-start=\"2467\"\u003e\u003cstrong\u003e5-Inch Muffler\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"2594\" data-start=\"2486\"\u003e\n\u003cli data-end=\"2526\" data-start=\"2486\"\u003e\n\u003cp data-end=\"2526\" data-start=\"2488\"\u003eDeeper, more aggressive exhaust note\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2563\" data-start=\"2527\"\u003e\n\u003cp data-end=\"2563\" data-start=\"2529\"\u003eBest for high-performance builds\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2594\" data-start=\"2564\"\u003e\n\u003cp data-end=\"2594\" data-start=\"2566\"\u003eIncreased airflow capacity\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"2675\" data-start=\"2596\"\u003eChoose 4'' for controlled refinement, choose 5'' for bold presence and maximum flow.\u003c\/p\u003e\n\u003chr data-end=\"2680\" data-start=\"2677\"\u003e\n\u003ch3 data-end=\"2704\" data-start=\"2682\"\u003ePerformance Benefits\u003c\/h3\u003e\n\u003cul data-end=\"2876\" data-start=\"2706\"\u003e\n\u003cli data-end=\"2738\" data-start=\"2706\"\u003e\n\u003cp data-end=\"2738\" data-start=\"2708\"\u003eReduced exhaust backpressure\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2779\" data-start=\"2739\"\u003e\n\u003cp data-end=\"2779\" data-start=\"2741\"\u003eImproved turbo spool characteristics\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2810\" data-start=\"2780\"\u003e\n\u003cp data-end=\"2810\" data-start=\"2782\"\u003eEnhanced throttle response\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2838\" data-start=\"2811\"\u003e\n\u003cp data-end=\"2838\" data-start=\"2813\"\u003eControlled exhaust tone\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2876\" data-start=\"2839\"\u003e\n\u003cp data-end=\"2876\" data-start=\"2841\"\u003eDurable stainless steel longevity\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"3052\" data-start=\"2878\"\u003eWhether you're upgrading a factory system or finishing a custom turbo-back exhaust, Diesel Performance Muffler delivers the sound and flow your truck deserves.\u003c\/p\u003e\n\u003chr data-end=\"3057\" data-start=\"3054\"\u003e\n\u003ch3 data-end=\"3077\" data-start=\"3059\"\u003eWhy DPFexhaust?\u003c\/h3\u003e\n\u003cp data-end=\"3314\" data-start=\"3079\"\u003eDPFexhaust designs high-quality diesel performance exhaust components engineered for real-world durability and performance. Our mufflers are built for Cummins, Duramax, and Powerstroke platforms — delivering dependable results mile after mile.\u003c\/p\u003e\n\u003cp data-is-only-node=\"\" data-is-last-node=\"\" data-end=\"3439\" data-start=\"3316\"\u003eUpgrade your exhaust system today with us and experience the perfect balance of performance, sound, and durability.\u003c\/p\u003e\n\u003chr data-end=\"3057\" data-start=\"3054\"\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":"4''","offer_id":48553374679263,"sku":"#11931","price":125.0,"currency_code":"USD","in_stock":true},{"title":"5''","offer_id":48553374712031,"sku":"#11932","price":169.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0752\/1789\/5647\/files\/4_stainless_steel_muffler.png?v=1772262043","url":"https:\/\/dpfexhaust.com\/products\/4-5-stainless-steel-diesel-muffler-for-cummins-duramax-powerstroke","provider":"DPFexhaust","version":"1.0","type":"link"}