{"product_id":"max-air-flow-bundle-kit-for-2020-2025-silverado-sierra-2500-3500-hd-l5p-duramax-hsp-diesel","title":"Max Air Flow Bundle Kit For 2020-2025 Silverado\/Sierra 2500\/3500 HD L5P Duramax HSP Diesel","description":"\u003cp\u003eThe HSP Diesel Max Air Flow Bundle Kit for 2020-2025 Chevrolet and GMC L5P Duramax trucks combines HSP's most popular airflow upgrades into one complete performance package. Designed to improve reliability, airflow efficiency, turbo response, and overall engine bay appearance, this bundle is ideal for stock trucks, tuned applications, towing setups, and performance builds alike.\u003c\/p\u003e\n\u003cp\u003eBy upgrading the factory hot side pipe, cold side intercooler pipe, and intake system together, this package eliminates multiple OEM restriction and failure points while maximizing airflow from the intake all the way through the intercooler system.\u003c\/p\u003e\n\u003cp\u003eThe factory L5P intake and intercooler piping system is designed around cost and packaging constraints, leaving several weak points in both durability and airflow efficiency. Factory rubber intercooler tubes are prone to swelling, splitting, and leaking under increased boost pressure and heat cycles, while the restrictive intake system limits airflow potential.\u003c\/p\u003e\n\u003cp\u003eThe HSP Max Air Flow Bundle replaces those restrictive and failure-prone components with mandrel-bent aluminized steel tubing, reinforced silicone boots, billet aluminum couplers, and HSP's high-flow MEGA filter intake system. The result is improved reliability, better throttle response, faster turbo spool-up, increased airflow, and a cleaner engine bay appearance.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Charge Air System Upgrade:\u003c\/strong\u003e Upgrades both the hot side and cold side intercooler piping for maximum airflow efficiency and reliability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Flow Cold Air Intake:\u003c\/strong\u003e Features IN mandrel-bent tubing and HSP's MEGA filter for substantially improved airflow over the factory intake system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMandrel-Bent Tubing:\u003c\/strong\u003e Smooth bends reduce airflow turbulence and restriction while improving turbo efficiency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBillet Aluminum Couplers:\u003c\/strong\u003e Eliminates common OEM weak points while improving durability under high boost conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty Silicone Boots \u0026amp; Stainless T-Bolt Clamps:\u003c\/strong\u003e Designed to withstand elevated boost pressure and repeated heat cycles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustom Powder Coat Options:\u003c\/strong\u003e Available in multiple colors to match your engine bay setup.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo Tuning Required:\u003c\/strong\u003e Intake system retains factory MAF calibration for proper drivability and operation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e1x L5P 20-24 Upper Hotside Tube (HSP-IN-206-U)\u003c\/li\u003e\n\u003cli\u003e1x L5P 20-24 Lower Hotside Tube (HSP-IN-206-L)\u003c\/li\u003e\n\u003cli\u003e1x 3 Inch 43 Degree Boot (RFB-857-RFAB)\u003c\/li\u003e\n\u003cli\u003e5x 3 Inch T-Bolt Clamp (RFB-422-RFAB)\u003c\/li\u003e\n\u003cli\u003e1x 2.75 Inch - 3 Inch Reducer Boot (RFB-856-RFAB)\u003c\/li\u003e\n\u003cli\u003e1x 2.75 T-Bolt Clamp (RFB-492-RFAB)\u003c\/li\u003e\n\u003cli\u003e1x Coldside Pipe (HSP-IN-870)\u003c\/li\u003e\n\u003cli\u003e1x Welded Throttle Body Coupler (HSP-IN-873)\u003c\/li\u003e\n\u003cli\u003e1x 20-24 L5P Throttle Body Coupler (RFB-873-RFAB)\u003c\/li\u003e\n\u003cli\u003e1x 3.5 Inch Aluminum 60 Degree Bend (RFB-310-RFAB)\u003c\/li\u003e\n\u003cli\u003e1x 20-24 L5P Intercooler Coupler (RFB-872-RFAB)\u003c\/li\u003e\n\u003cli\u003e4x 3.5 Inch T-Bolt Clamp (RFB-423-RFAB)\u003c\/li\u003e\n\u003cli\u003e1x 3.5 Inch x 4 Inch Straight Boot (RFB-871-RFAB)\u003c\/li\u003e\n\u003cli\u003e1x 3.5 Inch x 3.5 Inch 18 Degree Angled Boot (RFB-875-RFAB)\u003c\/li\u003e\n\u003cli\u003e1x L5P 2020-2025 Cold Air Intake Tube (HSP-IN-155)\u003c\/li\u003e\n\u003cli\u003e1x L5P 2020-2025 Heat Shield Box (HSP-IN-738)\u003c\/li\u003e\n\u003cli\u003e1x L5P 2020-2025 Intake Lid (HSP-IN-738-1)\u003c\/li\u003e\n\u003cli\u003e1x L5P Intake Kit (HSP-KIT-021-HSP)\u003c\/li\u003e\n\u003cli\u003e1x L5P 2020 Factory Plug Kit (HSP-KIT-FP-021-HSP)\u003c\/li\u003e\n\u003cli\u003e1x MEGA 4.5 Inch Straight Air Filter (RFB-514-1-RFAB)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e2020-2025 Chevrolet Silverado 2500HD \/ 3500HD w\/ L5P Duramax\u003c\/li\u003e\n\u003cli\u003e2020-2025 GMC Sierra 2500HD \/ 3500HD w\/ L5P Duramax\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eImproved airflow throughout the entire intake and intercooler system\u003c\/li\u003e\n\u003cli\u003eFaster turbo spool-up and improved throttle response\u003c\/li\u003e\n\u003cli\u003eReduced airflow restriction and turbulence\u003c\/li\u003e\n\u003cli\u003eUpgraded reliability over factory rubber piping\u003c\/li\u003e\n\u003cli\u003eHeavy-duty reinforced silicone boots\u003c\/li\u003e\n\u003cli\u003eLarge In MEGA filter for increased airflow capacity\u003c\/li\u003e\n\u003cli\u003eCleaner, more aggressive engine bay appearance\u003c\/li\u003e\n\u003cli\u003eDirect bolt-on installation\u003c\/li\u003e\n\u003cli\u003eCustom powder coat options available\u003c\/li\u003e\n\u003cli\u003eNo tuning required\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSome 2020-2025 L5P Duramax trucks may require disabling the factory Air Filter Life System to prevent false Change Air Filter alerts caused by the increased airflow from the HSP intake system.\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eOn the Driver Information Center, open the Options menu and select Info Page Options.\u003c\/li\u003e\n\u003cli\u003eVerify that Air Filter Life is enabled.\u003c\/li\u003e\n\u003cli\u003eNavigate to the Info section and select Air Filter Life.\u003c\/li\u003e\n\u003cli\u003eSelect Disable.\u003c\/li\u003e\n\u003cli\u003eThis disables the alert, which cannot recalibrate for increased airflow.\u003c\/li\u003e\n\u003cli\u003eDisabling the alert has no effect on vehicle operation.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cul\u003e\n\u003cli\u003eReplaces GM Cold Side Pipe Part #84682179\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDetails:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCategory: Cold Air Intake\u003c\/li\u003e\n\u003cli\u003eFits: 2020-2025 Siverado\/Sierra 2500\/3500 HD\u003c\/li\u003e\n\u003cli\u003eFuel Type: Diesel\u003c\/li\u003e\n\u003cli\u003eEngine Manufacturer: Duramax\u003c\/li\u003e\n\u003cli\u003eEngine Designation: L5P\u003c\/li\u003e\n\u003cli\u003eMaterial: Aluminized Steel \/ Billet Aluminum\u003c\/li\u003e\n\u003cli\u003eColor: Polar White\u003c\/li\u003e\n\u003cli\u003eFinish: Powdercoat\u003c\/li\u003e\n\u003cli\u003eSold As: Kit\u003c\/li\u003e\n\u003cli\u003eVehicle Make: Chevy \/ GMC\u003c\/li\u003e\n\u003cli\u003eEngine Years: 2020-2025\u003c\/li\u003e\n\u003cli\u003eUniversal: No\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HSP Diesel","offers":[{"title":"Polar 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