{"product_id":"wehrli-2017-2019-l5p-duramax-stage-3-high-flow-intake-bundle-kit","title":"Wehrli 2017-2019 L5P Duramax Stage 3 High Flow Intake Bundle Kit","description":"\u003cp\u003eOpen up the entire airflow path on your \u003cstrong\u003e2017-2019 Chevrolet Silverado \/ GMC Sierra 2500HD\/3500HD 6.6L Duramax L5P\u003c\/strong\u003e with the \u003cstrong\u003eWehrli Stage 3 High Flow Intake Bundle Kit\u003c\/strong\u003e (Manufacturer Part # WCF100403). This is Wehrli's Stage 2 High Flow Bundle combined with their 3.5\" down pipe — intake, air box, both intercooler pipes and the exhaust down pipe in one package, replacing every restrictive plastic and crushed-tube section between the hood duct and the factory front pipe. Bolts to a stock truck, no tuning required.\u003c\/p\u003e\n\n\u003ch4\u003eWhy Choose the Wehrli Stage 3 High Flow Intake Bundle Kit?\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e4\" fabricated intake path\u003c\/strong\u003e – 14 gauge aluminum pipe and horn with smooth mandrel bends replace the restrictive factory plastic, and the horn runs over an inch larger in diameter than the OEM piece.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCold air where it counts\u003c\/strong\u003e – the sealed 10 gauge aluminum air box pulls from the hood ram air duct and inner fender, and the critical duct seal moves to the underside of the hood for a cleaner engine bay.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResonator delete on the hot side\u003c\/strong\u003e – the 3\" one-piece driver side pipe eliminates the OEM resonator and the middle boot joint, killing two restrictions and two failure points at once.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo more blown factory boots\u003c\/strong\u003e – the 3.5\" passenger side pipe uses a CNC machined flange with a double O-ring seal in place of the OEM clip ring design, where boost leaks on this platform usually start.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCeramic coated down pipe\u003c\/strong\u003e – the 3.5\" DOC-back pipe replaces the crushed factory section, arrives heat wrapped, and includes bungs for the factory sensors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardware that holds boost\u003c\/strong\u003e – reinforced silicone boots and stainless steel T-bolt clamps throughout instead of clip rings and rubber.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eServiceable filter\u003c\/strong\u003e – the removable air box lid element lets you inspect the filter and its hydrophobic pre-filter cover without pulling the box apart.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch5\u003eKit Includes\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e4\" aluminum intake pipe\u003c\/li\u003e\n\u003cli\u003e4\" intake horn with PCV port and Surge Ring\u003c\/li\u003e\n\u003cli\u003eAir box enclosure with dry filter assembly and Outerwears pre-filter cover\u003c\/li\u003e\n\u003cli\u003e3\" driver (hot) side intercooler pipe\u003c\/li\u003e\n\u003cli\u003e3.5\" passenger (cold) side intercooler pipe\u003c\/li\u003e\n\u003cli\u003e3.5\" DOC-back down pipe, black ceramic coated with heat wrap pre-installed\u003c\/li\u003e\n\u003cli\u003eInstallation hardware, 4\" silicone hump boot and stainless T-bolt clamps\u003c\/li\u003e\n\u003cli\u003eSilicone boots, stainless steel T-bolt clamps, O-rings and intercooler outlet clip\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch5\u003eInstallation Highlights\u003c\/h5\u003e\n\u003cp\u003eInstalls with basic hand tools — no drilling, no fabrication, and nothing cut off the factory exhaust. The kit retains every factory connection point and sensor location, and the down pipe mates to the OEM exhaust front pipe at the four bolt style flange. Will fit a completely stock truck with no other modifications or upgrades necessary.\u003c\/p\u003e\n\n\u003ch5\u003eFits These Models\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003e2017, 2018 and 2019 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, 14 gauge aluminum\u003c\/li\u003e\n\u003cli\u003eAir box: 10 gauge aluminum sheet\u003c\/li\u003e\n\u003cli\u003eDriver (hot) side intercooler pipe: 3\" diameter, 14 gauge aluminum, one piece\u003c\/li\u003e\n\u003cli\u003ePassenger (cold) side intercooler pipe: 3.5\" diameter, 14 gauge aluminum\u003c\/li\u003e\n\u003cli\u003eDown pipe: 3.5\" diameter, DOC back\u003c\/li\u003e\n\u003cli\u003eShipping weight: 65.0 lbs\u003c\/li\u003e\n\u003cli\u003ePackage dimensions: 36\" W x 24\" H x 12\" 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\u003eComplete Stage 2 bundle plus down pipe\u003c\/strong\u003e - intake and exhaust side handled in one order.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4\" intake, 3\" hot side, 3.5\" cold side\u003c\/strong\u003e - every factory restriction upsized.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCNC machined double O-ring flange\u003c\/strong\u003e - seals where the factory clip ring fails.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCeramic coated, heat wrapped down pipe\u003c\/strong\u003e - better thermal efficiency out of the box.\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\u003e2017-2019 only.\u003c\/strong\u003e The 2020 and newer L5P uses a different bundle — intake and charge pipe geometry changed. Confirm your model year before ordering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmissions equipped trucks.\u003c\/strong\u003e The down pipe is a DOC-back piece that retains the factory emissions hardware and sensor locations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOn the horsepower figure:\u003c\/strong\u003e Wehrli reports a 25 HP gain from the 4\" turbo inlet, measured with a Max Effort tune. Treat that as a tuned result. On a stock truck this kit is an airflow and reliability upgrade.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLead time varies by color.\u003c\/strong\u003e WCFab Red 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\u003eStage 3 bundles pair best with emissions compliant tuning and a larger drop-in turbocharger.\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\u003eWCF100403\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":"Gloss White","offer_id":41001993044010,"sku":"WCFWCF100403-GW","price":1745.5,"currency_code":"USD","in_stock":true},{"title":"Kiwi Green","offer_id":41001993109546,"sku":"WCFWCF100403-KIWI","price":1745.5,"currency_code":"USD","in_stock":true},{"title":"Bengal Red","offer_id":41203438518314,"sku":"WCFWCF100403-BR","price":1745.5,"currency_code":"USD","in_stock":true},{"title":"Candy Red","offer_id":42784461619242,"sku":"WCFWCF100403-CR","price":1866.78,"currency_code":"USD","in_stock":true},{"title":"Brizzle Blue","offer_id":43815365935146,"sku":"WCFWCF100403-BRZ","price":1745.5,"currency_code":"USD","in_stock":true},{"title":"Bengal Blue","offer_id":43877706367018,"sku":"WCFWCF100403-BB","price":1745.5,"currency_code":"USD","in_stock":true},{"title":"Chevy Orange","offer_id":43917391396906,"sku":"WCFWCF100403-CRO","price":1745.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0584\/8305\/files\/F221304870_9ff37884-44f1-4d5f-ac4b-0205eb1319ea.jpg?v=1789581064","url":"https:\/\/fassmotorsports.com\/products\/wehrli-2017-2019-l5p-duramax-stage-3-high-flow-intake-bundle-kit","provider":"FASS Motorsports","version":"1.0","type":"link"}