{"product_id":"hsp-diesel-max-air-flow-bundle-for-2011-2012-chevrolet-and-gmc-lml-duramax","title":"HSP Diesel Max Air Flow Bundle for 2011-2012 Chevrolet and GMC LML Duramax","description":"\u003cdiv data-content-type=\"html\" data-appearance=\"default\" data-element=\"main\"\u003e\n\u003ch2\u003eHSP 2011-2012 Chevrolet \/ GMC Max Air Flow Bundle\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e 583-1-HSP\u003c\/p\u003e\n\u003cp\u003eThe 583-1-HSP, known as the Max Air Flow Bundle, is designed for the 2011-2012 LML Duramax-equipped Chevrolet and GMC trucks. This kit covers nearly every performance-choking point in the stock system and delivers real, dyno-proven improvements.\u003c\/p\u003e\n\u003ch3\u003eWhat Is the Max Air Flow Bundle for the LML Duramax?\u003c\/h3\u003e\n\u003cp\u003eThis bundle targets restrictive factory components and replaces them with high-flow, durable HSP Diesel parts. Designed as a value-packed upgrade, it includes many of our most effective performance pieces in one discounted kit.\u003c\/p\u003e\n\u003ch4\u003eHot Side Intercooler Pipe\u003c\/h4\u003e\n\u003cp\u003eUpgraded to 3\" mandrel-bent aluminum for up to 40% more airflow. Eliminates common failure points in the stock setup while improving reliability and airflow consistency.\u003c\/p\u003e\n\u003ch4\u003eMax Flow Bridge and Cold Side Tube\u003c\/h4\u003e\n\u003cp\u003eOur two-piece CNC-machined Max Flow Bridge features an O-ring seal for leak-free boost. It's paired with a 3\" cold side mandrel-bent pipe to provide consistent, unrestricted flow through the charge air system.\u003c\/p\u003e\n\u003ch4\u003eMax Flow Intake Mouthpiece\u003c\/h4\u003e\n\u003cp\u003eOur Max Flow Mouthpiece is fabricated with larger diameter bends and an O-ring seal. This mouthpiece reduces turbulence, improves boost response, and prevents unfiltered air from entering the turbo.\u003c\/p\u003e\n\u003ch4\u003eCold Air Intake\u003c\/h4\u003e\n\u003cp\u003eIncludes a 4.5\" mandrel-bent tube and open-style heat shield box for cooler, denser air. On average, this system contributes up to 20 horsepower and helps avoid power losses from heat soak.\u003c\/p\u003e\n\u003ch4\u003ePassenger Side Up-Pipe\u003c\/h4\u003e\n\u003cp\u003eBuilt from heavy-wall 304 stainless steel with sleeved bellows. Designed for high-flow and maximum durability, this up-pipe helps reduce EGTs and improve turbo spool-up.\u003c\/p\u003e\n\u003ch3\u003eWhats Included:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1x Hotside Tube (HSP-IN-218)\u003c\/li\u003e\n\u003cli\u003e1x Bridge (HSP-IN-223)\u003c\/li\u003e\n\u003cli\u003e1x Coldside (HSP-IN-228)\u003c\/li\u003e\n\u003cli\u003e1x Max Flow Turbo Inlet (HSP-IN-216-2)\u003c\/li\u003e\n\u003cli\u003e1x 4.5\" Cold Air Intake Tube (HSP-IN-150-12)\u003c\/li\u003e\n\u003cli\u003e1x 4.5\" Hole Heatshield Box (HSP-IN-749)\u003c\/li\u003e\n\u003cli\u003e1x Heatshield Box Lid (HSP-IN-746)\u003c\/li\u003e\n\u003cli\u003e1x 2\" Stock Replacement Up Pipe - Passenger - Ceramic Coated (HSP-IN-280-C)\u003c\/li\u003e\n\u003cli\u003e1x 4.5\" Filter (RFB-413-RFAB)\u003c\/li\u003e\n\u003cli\u003e1x 1\/8'' NPT Brass Plug (RFB-811-RFAB)\u003c\/li\u003e\n\u003cli\u003e1x M6x1.0x16mm Flange Bolt (RFB-893-RFAB)\u003c\/li\u003e\n\u003cli\u003e4x 1\/8\" Aluminum Rivet (RFB-098-RFAB)\u003c\/li\u003e\n\u003cli\u003e3x 10-32 x 3\/8\" Button Head Screws (RFB-099-RFAB)\u003c\/li\u003e\n\u003cli\u003e16x Trim Lock (RFB-411-RFAB)\u003c\/li\u003e\n\u003cli\u003e1x Heatshield Box Lid Backer Plate (RFB-746-BP-RFAB)\u003c\/li\u003e\n\u003cli\u003e2x M4x.7x10mm Bolt (RFB-901-RFAB)\u003c\/li\u003e\n\u003cli\u003e2x 4.5\" T-Bolt Clamp (RFB-435-RFAB)\u003c\/li\u003e\n\u003cli\u003e1x 4.5\" x 4\" Straight Boot (RFB-444-RFAB)\u003c\/li\u003e\n\u003cli\u003e1x 2.25\" T-Bolt Clamp (RFB-420-RFAB)\u003c\/li\u003e\n\u003cli\u003e3x 3\" T-Bolt Clamp (RFB-422-RFAB)\u003c\/li\u003e\n\u003cli\u003e1x 3\"x4\" Straight Boot (RFB-430-RFAB)\u003c\/li\u003e\n\u003cli\u003e1x 2.25\" to 3\" Reducer Boot (RFB-441-RFAB)\u003c\/li\u003e\n\u003cli\u003e1x Up-pipe Gasket (Turbo Side) (RFB-821-RFAB)\u003c\/li\u003e\n\u003cli\u003e1x Up-Pipe Gasket (Manifold Side) (RFB-822-RFAB)\u003c\/li\u003e\n\u003cli\u003e1x Duramax Pre-Made Hose - Rubber (RFB-398-RFAB)\u003c\/li\u003e\n\u003cli\u003e1x 5\/8\" Worm Gear Clamp (RFB-403-RFAB)\u003c\/li\u003e\n\u003cli\u003e1x 1\/2\" Worm Gear Clamp (RFB-405-RFAB)\u003c\/li\u003e\n\u003cli\u003e60x 5\/8\" PCV Hose (RFB-407-RFAB)\u003c\/li\u003e\n\u003cli\u003e4x 3\" T-Bolt Clamp (RFB-422-RFAB)\u003c\/li\u003e\n\u003cli\u003e2x 3\"x4\" Straight Boot (RFB-430-RFAB)\u003c\/li\u003e\n\u003cli\u003e1x 3\/4\" to 5\/8\" Heater Hose Connector (RFB-462-RFAB)\u003c\/li\u003e\n\u003cli\u003e1x 3\/8\" Coolant Plug - Aluminum (RFB-808-RFAB)\u003c\/li\u003e\n\u003cli\u003e1x Rear Cover Coolant Fitting (RFB-809-RFAB)\u003c\/li\u003e\n\u003cli\u003e1x Coolant Plug O-Ring (RFB-813-RFAB)\u003c\/li\u003e\n\u003cli\u003e2x M6x1.0x25mm Flange Bolt (RFB-896-RFAB)\u003c\/li\u003e\n\u003cli\u003e4x M6x1.0x20mm Flange Bolt (RFB-897-RFAB)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eVehicle Fitment:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLML: 2011-2012 (8th digit of VIN = 8)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eHow to Verify:\u003c\/strong\u003e The 8th character of the VIN indicates engine code. The 10th character shows the model year.\u003c\/p\u003e\n\u003ch3\u003eSpecial Note:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThis kit is specific to 2011-2012 models. Despite sharing a VIN code with newer years, changes in the engine bay prevent cross-compatibility.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eOverview:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIncreased performance and airflow\u003c\/li\u003e\n\u003cli\u003eHigh-flow Cold Air Intake system\u003c\/li\u003e\n\u003cli\u003e3\" Mandrel-Bent Hot and Cold Side Tubes\u003c\/li\u003e\n\u003cli\u003eHeavy-duty stainless steel up-pipe\u003c\/li\u003e\n\u003cli\u003ePrecision CNC-machined Max Flow Bridge\u003c\/li\u003e\n\u003cli\u003eHandmade, O-ring-sealed components\u003c\/li\u003e\n\u003cli\u003ePowder coat finish options available\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eOur Warranty\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eHSP No BS Limited Lifetime Warranty\u003c\/strong\u003e\u003cbr\u003eWe stand firmly behind every product that leaves our facility. For full warranty details and claim process, \u003ca href=\"{{store%20url='hsp-warranty'}}\" title=\"Read the entire HSP Limited Lifetime Warranty!\"\u003eclick here\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"HSP Diesel Performance","offers":[{"title":"Unfinished Raw","offer_id":67756332876068,"sku":"583-1-HSP-RAW","price":1971.0,"currency_code":"USD","in_stock":true},{"title":"Polar White","offer_id":67756332908836,"sku":"583-1-HSP-W","price":2181.0,"currency_code":"USD","in_stock":true},{"title":"Silk Satin Black","offer_id":67756332941604,"sku":"583-1-HSP-SB","price":2181.0,"currency_code":"USD","in_stock":true},{"title":"M\u0026M Orange","offer_id":67756332974372,"sku":"583-1-HSP-O","price":2181.0,"currency_code":"USD","in_stock":true},{"title":"Ink Black","offer_id":67756333007140,"sku":"583-1-HSP-GB","price":2181.0,"currency_code":"USD","in_stock":true},{"title":"Kingsport Gray","offer_id":67756333039908,"sku":"583-1-HSP-DG","price":2181.0,"currency_code":"USD","in_stock":true},{"title":"Illusion Cherry","offer_id":67756333072676,"sku":"583-1-HSP-CR","price":2181.0,"currency_code":"USD","in_stock":true},{"title":"Illusion Purple","offer_id":67756333105444,"sku":"583-1-HSP-CP","price":2181.0,"currency_code":"USD","in_stock":true},{"title":"Flag Red","offer_id":67756333138212,"sku":"583-1-HSP-BR","price":2181.0,"currency_code":"USD","in_stock":true},{"title":"Illusion Blueberry","offer_id":67756333170980,"sku":"583-1-HSP-CB","price":2181.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0936\/4019\/6388\/files\/583-1-hsp-raw-main.webp?v=1792074637","url":"https:\/\/stainlessdiesel.com\/products\/hsp-diesel-max-air-flow-bundle-for-2011-2012-chevrolet-and-gmc-lml-duramax","provider":"Stainless Diesel ","version":"1.0","type":"link"}