{"product_id":"wehrli-2020-2026-l5p-duramax-4-intake-kit-with-air-box-stage-2","title":"Wehrli 2020-2026 L5P Duramax 4\" Intake Kit with Air Box Stage 2","description":"\u003cp\u003eThe factory intake on a \u003cstrong\u003e2020-2026 Chevrolet Silverado \/ GMC Sierra 2500HD\/3500HD 6.6L Duramax L5P\u003c\/strong\u003e is restrictive plastic from the fender to the turbo. The \u003cstrong\u003eWehrli Stage 2 4\" Intake Kit with Air Box\u003c\/strong\u003e (Manufacturer Part # WCF100684) replaces the whole path — 4\" fabricated aluminum pipe, a 4\" intake horn with PCV port and surge ring, and a sealed 10 gauge air box that seals to the functional ram air port in the hood. Bolt on, no tuning. One setting must be changed before you start the truck — see Notes.\u003c\/p\u003e\n\n\u003ch4\u003eWhy Choose the Wehrli Stage 2 4\" Intake Kit?\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes the intake horn\u003c\/strong\u003e – this is what separates Stage 2 from the standard kit. The horn is over an inch larger than OEM and removes the restriction sitting right at the turbo inlet.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeals to the hood ram air duct\u003c\/strong\u003e – the kit ships with the seal for the functional ram air port, so the box draws cold air from the hood duct and the inner fender instead of underhood heat.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4\" aluminum piping\u003c\/strong\u003e – large diameter with smooth aerodynamic bends, improving intake air velocity and volume.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10 gauge aluminum box and lid\u003c\/strong\u003e – the lid element lifts off for a filter check without pulling the box apart.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDry filter with an Outerwears cover\u003c\/strong\u003e – hydrophobic pre-filter keeping water and grit off the element.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMore sound\u003c\/strong\u003e – a noticeably more aggressive engine and turbo note under acceleration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustom powder coat\u003c\/strong\u003e – the whole assembly in your choice of Wehrli's colors. Made in the USA.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch5\u003eKit Includes\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e4\" intake pipe, fabricated aluminum\u003c\/li\u003e\n\u003cli\u003e4\" intake horn with PCV port and surge ring\u003c\/li\u003e\n\u003cli\u003eAir box and lid, 10 gauge aluminum sheet\u003c\/li\u003e\n\u003cli\u003eDry air filter\u003c\/li\u003e\n\u003cli\u003eOuterwears pre-filter cover\u003c\/li\u003e\n\u003cli\u003eSeal for connection to the functional ram air port on the hood\u003c\/li\u003e\n\u003cli\u003eHigh quality silicone boot and stainless steel T-bolt clamps\u003c\/li\u003e\n\u003cli\u003eInstallation hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch5\u003eInstallation Highlights\u003c\/h5\u003e\n\u003cp\u003eInstalls easily with basic hand tools and needs no tuning — it fits a stock truck with no other modifications or upgrades necessary. Disable the air filter monitoring system before the first start.\u003c\/p\u003e\n\n\u003ch5\u003eFits These Models\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003e2020, 2021, 2022, 2023, 2024, 2025 and 2026 Chevrolet Silverado 2500HD\/3500HD and GMC Sierra 2500HD\/3500HD with the 6.6L Duramax L5P.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch5\u003eSpecifications\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eIntake pipe: 4\" diameter fabricated aluminum\u003c\/li\u003e\n\u003cli\u003eIntake horn: 4\" with PCV port and surge ring, over an inch larger than OEM diameter\u003c\/li\u003e\n\u003cli\u003eAir box and lid: 10 gauge aluminum sheet\u003c\/li\u003e\n\u003cli\u003eFilter: dry element with Outerwears hydrophobic pre-filter cover\u003c\/li\u003e\n\u003cli\u003eReplaces GM part numbers: 84841229, 84841225, 84262962, 85614333, 84554702\u003c\/li\u003e\n\u003cli\u003eShipping weight: 21.0 lbs\u003c\/li\u003e\n\u003cli\u003ePackage dimensions: 20\" W x 18\" H x 20\" L, ships in its own box\u003c\/li\u003e\n\u003cli\u003eFinish: custom powder coat, color selected above\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch5\u003eKey Features at a Glance\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake horn included\u003c\/strong\u003e - the Stage 2 difference, an inch larger than OEM.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHood ram air seal included\u003c\/strong\u003e - real cold air, not underhood air.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4\" fabricated aluminum\u003c\/strong\u003e - replaces the restrictive plastic tract.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10 ga. sealed air box\u003c\/strong\u003e - serviceable lid.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo tuning required\u003c\/strong\u003e - bolt on to a stock truck.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustom powder coat finish\u003c\/strong\u003e - pick your color above.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch5\u003eNotes\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e⚠ Disable the air filter monitoring system before initial start up.\u003c\/strong\u003e Wehrli is explicit: skip it and the truck throws a SERVICE AIR FILTER message that \u003cstrong\u003erequires a dealership to reset\u003c\/strong\u003e. When the setting is correct, air filter life reads as disabled.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLead time varies by color.\u003c\/strong\u003e WCFab Red, WCFab Grey, Candy Teal, Gloss White and Gloss Black are stocked and ship in 3-5 business days. All other colors are made to order on a 10-15 business day lead time.\u003c\/li\u003e\n\u003cli\u003eWehrli also offers this truck's charge piping separately — call if you want the full Stage 2 bundle with intercooler pipes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFASS SKU: \u003cstrong\u003e[ADD FASS SKU]\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eManufacturer Part #: \u003cstrong\u003eWCF100684\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch5\u003eQuestions? We’re Here to Help.\u003c\/h5\u003e\n\u003cp\u003eHave questions about upgrades for your 6.6L Duramax L5P? Contact FASS Motorsports and we’ll get you dialed:\u003c\/p\u003e\n\u003cp\u003ePhone: \u003cstrong\u003e636-429-7020\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEmail: \u003cstrong\u003einfo@fassmotorsports.com\u003c\/strong\u003e\u003c\/p\u003e","brand":"Wehrli","offers":[{"title":"Bengal Blue","offer_id":44629985951786,"sku":"WCFWCF100684-BB","price":833.45,"currency_code":"USD","in_stock":true},{"title":"Bengal Grey","offer_id":42726596902954,"sku":"WCFWCF100684-BG","price":833.45,"currency_code":"USD","in_stock":true},{"title":"Bengal Red","offer_id":41002024894506,"sku":"WCFWCF100684-BR","price":833.45,"currency_code":"USD","in_stock":true},{"title":"Bengal Silver","offer_id":41595958427690,"sku":"WCFWCF100684-BS","price":833.45,"currency_code":"USD","in_stock":true},{"title":"Brizzle Blue","offer_id":42932562034730,"sku":"WCFWCF100684-BRZ","price":833.45,"currency_code":"USD","in_stock":true},{"title":"Bronze Chrome","offer_id":41595958001706,"sku":"WCFWCF100684-BC","price":906.22,"currency_code":"USD","in_stock":true},{"title":"Candy Red","offer_id":41034982195242,"sku":"WCFWCF100684-CR","price":906.22,"currency_code":"USD","in_stock":true},{"title":"Candy Teal","offer_id":41595958886442,"sku":"WCFWCF100684-CT","price":906.22,"currency_code":"USD","in_stock":true},{"title":"Cat Yellow","offer_id":41002024960042,"sku":"WCFWCF100684-CAT","price":833.45,"currency_code":"USD","in_stock":true},{"title":"Chevy Orange","offer_id":44771390586922,"sku":"WCFWCF100684-CRO","price":833.45,"currency_code":"USD","in_stock":true},{"title":"Custom","offer_id":44619614847018,"sku":"WCFWCF100684-CSTM","price":954.74,"currency_code":"USD","in_stock":true},{"title":"Deore Gold","offer_id":44771390652458,"sku":"WCFWCF100684-DG","price":906.22,"currency_code":"USD","in_stock":true},{"title":"Fine Texture Black","offer_id":44771390750762,"sku":"WCFWCF100684-FTB","price":833.45,"currency_code":"USD","in_stock":true},{"title":"Flat Black","offer_id":42896702439466,"sku":"WCFWCF100684-FB","price":833.45,"currency_code":"USD","in_stock":true},{"title":"Gloss Black","offer_id":41002024992810,"sku":"WCFWCF100684-GB","price":833.45,"currency_code":"USD","in_stock":true},{"title":"Gloss White","offer_id":41002025123882,"sku":"WCFWCF100684-GW","price":833.45,"currency_code":"USD","in_stock":true},{"title":"Gun Metal","offer_id":41002025025578,"sku":"WCFWCF100684-GM","price":833.45,"currency_code":"USD","in_stock":true},{"title":"Illusion Blueberry","offer_id":41595960623146,"sku":"WCFWCF100684-IBB","price":906.22,"currency_code":"USD","in_stock":true},{"title":"Illusion Purple","offer_id":41595960819754,"sku":"WCFWCF100684-IP","price":906.22,"currency_code":"USD","in_stock":true},{"title":"Kiwi Green","offer_id":44771390783530,"sku":"WCFWCF100684-KIWI","price":833.45,"currency_code":"USD","in_stock":true},{"title":"Semi-Gloss Black","offer_id":42759878541354,"sku":"WCFWCF100684-SGB","price":833.45,"currency_code":"USD","in_stock":true},{"title":"Sparkle Bomber Orange","offer_id":44771390849066,"sku":"WCFWCF100684-SBO","price":906.22,"currency_code":"USD","in_stock":true},{"title":"Sparkle Copper","offer_id":44606760452138,"sku":"WCFWCF100684-SC","price":906.22,"currency_code":"USD","in_stock":true},{"title":"Sparkle Granny Smith","offer_id":44771390947370,"sku":"WCFWCF100684-SGS","price":906.22,"currency_code":"USD","in_stock":true},{"title":"WCFab Grey","offer_id":41002025058346,"sku":"WCFWCF100684-GRY","price":906.22,"currency_code":"USD","in_stock":true},{"title":"WCFab Red","offer_id":41002025156650,"sku":"WCFWCF100684-RED","price":906.22,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0584\/8305\/files\/F221304863.jpg?v=1789585286","url":"https:\/\/fassmotorsports.com\/products\/wehrli-2020-2026-l5p-duramax-4-intake-kit-with-air-box-stage-2","provider":"FASS Motorsports","version":"1.0","type":"link"}