{"product_id":"mbrp-11-13-chevrolet-silverado-2500-hd-6-6l-duramax-turbo-down-pipe-black-coated-3-inch-diameter","title":"MBRP 11-13 Chevrolet Silverado 2500 HD 6.6L Duramax Turbo Down Pipe - Black Coated, 3 Inch Diameter","description":"Replace that restrictive factory downpipe with a MBRP direct replacement downpipe for more flow, fuel economy, and better performance. Removal of OEM catalytic converters may be a violation of emissions laws in your jurisdiction. Ensure that the intended use of this product is permitted. Not for sale or use in the state of California.\nArmor BLK Turbocharger Down Pipe; 3 in.; Black Coated; 4 in. Outlet Diameter Tip;\nWill Not Work With A 3\" Bolt Flange Style Connection.\n\u003cul\u003e\n  \u003cli\u003eRicher Diesel Tone. Increase Flow of 20% Over Stock, 21HP Gains and 24lb\/ft Torque.\u003c\/li\u003e\n  \u003cli\u003e20 Percent Greater Flow Over Stock\u003c\/li\u003e\n  \u003cli\u003eWill Not Affect Emissions\u003c\/li\u003e\n  \u003cli\u003eGains Of +21 Horsepower\u003c\/li\u003e\n  \u003cli\u003e24 lb.\/ft.\/ Torque Gain\u003c\/li\u003e\n  \u003cli\u003eGreater Heat Retention\u003c\/li\u003e\n  \u003cli\u003eRicher Diesel Sound\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eUpgrade your Chevrolet Silverado 2500 HD with the MBRP Part Number GM8427 turbo downpipe designed specifically for models from 2011 to 2014. This direct replacement component features a 3-inch diameter and a sleek black coating, offering improved exhaust flow and enhanced engine performance. The upgrade is engineered to increase exhaust flow by approximately 20% over stock, resulting in an estimated gain of 21 horsepower and 24 lb-ft of torque, optimizing your truck's power and responsiveness. The design also promotes greater heat retention, which can improve turbo efficiency and overall engine temperature management. This downpipe produces a richer diesel sound, giving your vehicle a more aggressive tone without affecting emissions compliance in jurisdictions where aftermarket modifications are permitted. Constructed with durable materials, it ensures long-lasting performance under demanding conditions. Please note that removal of OEM catalytic converters may violate emissions laws in certain areas, and this product is not legal for sale or use in California. Proper installation is essential to maximize benefits and ensure compatibility, especially since this part does not fit with a 3-inch bolt flange style connection. Designed for enthusiasts seeking performance upgrades, this MBRP downpipe is a reliable choice for boosting your Silverado's power, sound, and heat management. Always verify your vehicle's compatibility before installation and adhere to local regulations regarding emissions and aftermarket modifications.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eImproves exhaust flow by 20% over stock for enhanced performance\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eIncreases horsepower by up to 21 HP and torque by 24 lb-ft\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003es a durable black coated finish for corrosion resistance\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eDesigned specifically for 2011-2014 Chevrolet Silverado 2500 HD with 6.6L Duramax engine\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eProduces a richer diesel tone for a more aggressive sound\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eGreater heat retention to improve turbo efficiency\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eNot compatible with 3-inch bolt flange style connections\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eRequires proper installation and compliance with local emissions laws\u003c\/li\u003e\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2011 Chevrolet Silverado 2500 HD LT\u003cbr\u003e\n2011 Chevrolet Silverado 2500 HD LTZ\u003cbr\u003e\n2011 Chevrolet Silverado 2500 HD WT\u003cbr\u003e\n2011 Chevrolet Silverado 3500 HD LT\u003cbr\u003e\n2011 Chevrolet Silverado 3500 HD LTZ\u003cbr\u003e\n2011 Chevrolet Silverado 3500 HD WT\u003cbr\u003e\n2011 GMC Sierra 2500 HD Denali\u003cbr\u003e\n2011 GMC Sierra 2500 HD SLE\u003cbr\u003e\n2011 GMC Sierra 2500 HD SLT\u003cbr\u003e\n2011 GMC Sierra 2500 HD WT\u003cbr\u003e\n2011 GMC Sierra 3500 HD Denali\u003cbr\u003e\n2011 GMC Sierra 3500 HD SLE\u003cbr\u003e\n2011 GMC Sierra 3500 HD SLT\u003cbr\u003e\n2011 GMC Sierra 3500 HD WT\u003cbr\u003e\n2012 Chevrolet Silverado 2500 HD LT\u003cbr\u003e\n2012 Chevrolet Silverado 2500 HD LTZ\u003cbr\u003e\n2012 Chevrolet Silverado 2500 HD WT\u003cbr\u003e\n2012 Chevrolet Silverado 3500 HD LT\u003cbr\u003e\n2012 Chevrolet Silverado 3500 HD LTZ\u003cbr\u003e\n2012 Chevrolet Silverado 3500 HD WT\u003cbr\u003e\n2012 GMC Sierra 2500 HD Denali\u003cbr\u003e\n2012 GMC Sierra 2500 HD SLE\u003cbr\u003e\n2012 GMC Sierra 2500 HD SLT\u003cbr\u003e\n2012 GMC Sierra 2500 HD WT\u003cbr\u003e\n2012 GMC Sierra 3500 HD Denali\u003cbr\u003e\n2012 GMC Sierra 3500 HD SLE\u003cbr\u003e\n2012 GMC Sierra 3500 HD SLT\u003cbr\u003e\n2012 GMC Sierra 3500 HD WT\u003cbr\u003e\n2013 Chevrolet Silverado 2500 HD LT\u003cbr\u003e\n2013 Chevrolet Silverado 2500 HD LTZ\u003cbr\u003e\n2013 Chevrolet Silverado 2500 HD WT\u003cbr\u003e\n2013 Chevrolet Silverado 3500 HD LT\u003cbr\u003e\n2013 Chevrolet Silverado 3500 HD LTZ\u003cbr\u003e\n2013 Chevrolet Silverado 3500 HD WT\u003cbr\u003e\n2013 GMC Sierra 2500 HD Denali\u003cbr\u003e\n2013 GMC Sierra 2500 HD SLE\u003cbr\u003e\n2013 GMC Sierra 2500 HD SLT\u003cbr\u003e\n2013 GMC Sierra 2500 HD WT\u003cbr\u003e\n2013 GMC Sierra 3500 HD Denali\u003cbr\u003e\n2013 GMC Sierra 3500 HD SLE\u003cbr\u003e\n2013 GMC Sierra 3500 HD SLT\u003cbr\u003e\n2013 GMC Sierra 3500 HD WT\u003cbr\u003e\n2014 Chevrolet Silverado 2500 HD LT\u003cbr\u003e\n2014 Chevrolet Silverado 2500 HD LTZ\u003cbr\u003e\n2014 Chevrolet Silverado 2500 HD WT\u003cbr\u003e\n2014 Chevrolet Silverado 3500 HD LT\u003cbr\u003e\n2014 Chevrolet Silverado 3500 HD LTZ\u003cbr\u003e\n2014 Chevrolet Silverado 3500 HD WT\u003cbr\u003e\n2014 GMC Sierra 2500 HD Denali\u003cbr\u003e\n2014 GMC Sierra 2500 HD SLE\u003cbr\u003e\n2014 GMC Sierra 2500 HD SLT\u003cbr\u003e\n2014 GMC Sierra 2500 HD WT\u003cbr\u003e\n2014 GMC Sierra 3500 HD Denali\u003cbr\u003e\n2014 GMC Sierra 3500 HD SLE\u003cbr\u003e\n2014 GMC Sierra 3500 HD SLT\u003cbr\u003e\n2014 GMC Sierra 3500 HD WT\u003cbr\u003e\n2015 Chevrolet Silverado 2500 HD High Country\u003cbr\u003e\n2015 Chevrolet Silverado 2500 HD LT\u003cbr\u003e\n2015 Chevrolet Silverado 2500 HD LTZ\u003cbr\u003e\n2015 Chevrolet Silverado 2500 HD WT\u003cbr\u003e\n2015 Chevrolet Silverado 3500 HD High Country\u003cbr\u003e\n2015 Chevrolet Silverado 3500 HD LT\u003cbr\u003e\n2015 Chevrolet Silverado 3500 HD LTZ\u003cbr\u003e\n2015 Chevrolet Silverado 3500 HD WT\u003cbr\u003e\n2015 GMC Sierra 2500 HD Base\u003cbr\u003e\n2015 GMC Sierra 2500 HD Denali\u003cbr\u003e\n2015 GMC Sierra 2500 HD SLE\u003cbr\u003e\n2015 GMC Sierra 2500 HD SLT\u003cbr\u003e\n2015 GMC Sierra 3500 HD Base\u003cbr\u003e\n2015 GMC Sierra 3500 HD Denali\u003cbr\u003e\n2015 GMC Sierra 3500 HD SLE\u003cbr\u003e\n2015 GMC Sierra 3500 HD SLT\u003cstyle\u003etable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; 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