{"product_id":"ppe-3-stainless-steel-downpipe-117000424-2002-2004-6-6l-duramax-lb7","title":"PPE 3\" STAINLESS STEEL DOWNPIPE 117000424 | 2002-2004 6.6L Duramax LB7","description":"\u003cp\u003eReplace the restrictive factory downpipe on your 2001–2004 GM 6.6L Duramax with the PPE 117000424 3-Inch Stainless Steel Downpipe. Designed to eliminate the crushed oval section found in the OEM downpipe, this high-flow replacement features a smooth mandrel-bent design that improves exhaust flow and reduces restriction.\u003c\/p\u003e\n\u003cp\u003eConstructed from premium 304 stainless steel, this downpipe is built to withstand years of exposure to heat, moisture, and harsh operating conditions. For enhanced thermal management, the downpipe is spiral wrapped with titanium woven heat wrap and secured with stainless steel clamps to help reduce underhood temperatures and improve heat retention within the exhaust system.\u003c\/p\u003e\n\u003cp\u003eDesigned specifically for California emissions-equipped vehicles, this downpipe provides improved durability and performance while maintaining emissions compliance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e3-inch mandrel-bent design for improved exhaust flow\u003c\/li\u003e\n\u003cli\u003eReplaces the restrictive factory crushed downpipe section\u003c\/li\u003e\n\u003cli\u003ePremium 304 stainless steel construction\u003c\/li\u003e\n\u003cli\u003eTitanium woven heat wrap included\u003c\/li\u003e\n\u003cli\u003eStainless steel retaining clamps\u003c\/li\u003e\n\u003cli\u003eImproves exhaust system efficiency\u003c\/li\u003e\n\u003cli\u003eCorrosion-resistant construction for long service life\u003c\/li\u003e\n\u003cli\u003eDesigned for California emissions-equipped vehicles\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eEmissions Compliance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCARB Executive Order: D-701-30\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2001–2004 Chevrolet Silverado 2500HD\/3500HD 6.6L Duramax LB7 (California Emissions)\u003c\/li\u003e\n\u003cli\u003e2001–2004 GMC Sierra 2500HD\/3500HD 6.6L Duramax LB7 (California Emissions)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eApplication Note:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned specifically for trucks equipped with the California emissions package.\u003c\/li\u003e\n\u003cli\u003eCalifornia emissions-equipped trucks were sold throughout the United States and are not limited to California.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Pacific Performance Engineering","offers":[{"title":"Default Title","offer_id":52394978705691,"sku":"117000424","price":170.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0962\/5757\/3147\/files\/Screenshot2026-06-24at11.06.56AM.png?v=1782325950","url":"https:\/\/wwmperformance.com\/products\/ppe-3-stainless-steel-downpipe-117000424-2002-2004-6-6l-duramax-lb7","provider":"WWM Performance","version":"1.0","type":"link"}