{"product_id":"s400-second-gen-turbo-kit","title":"S400 Second-Gen Turbo Kit","description":"The Smeding Diesel S400 Second-Gen Turbo Kit is engineered to unlock maximum power and airflow for your 2003-2007 Dodge Ram 5.9L Cummins. This comprehensive kit provides a perfect balance of durability, drivability, and raw power, suitable for towing, daily driving, or high-horsepower builds. Assembled and quality-controlled in the USA, it’s built by diesel enthusiasts for real-world drivers.\n\nThe kit includes everything needed for a bolt-on installation: an S400 turbocharger (available in multiple sizes like S464\/83, S467\/83, S472\/83, S472\/87, with cast or billet wheel options), a T4 3-piece exhaust manifold for second-gen placement, a 4-inch downpipe for improved exhaust flow, a 5-inch intake kit with a filter for maximum airflow, and all necessary oil feed\/drain lines, intercooler piping, and hardware.\n\nCustomize your performance by selecting your desired turbo size and exhaust housing size, with options including .90, 1.0, and 1.10 A\/R for precise spool, towing power, or top-end performance tuning. The second-gen turbo location, combined with the 5-inch intake, ensures your Cummins breathes cool, clean air, contributing to lower Exhaust Gas Temperatures (EGTs).\n\nThis kit is specifically designed for the 2003-2007 5.9L Cummins. While the S400 frame is capable of supporting 600-1200+ HP, it's important to note that single S400 turbos are not ideal for general towing or daily driving due to noticeable lag below 2,000 RPM; for such applications, S300 single turbos or compound turbo systems are recommended.","brand":"Smeding Diesel","offers":[{"title":"Default Title","offer_id":52860374417720,"sku":"Not explicitly listed, but refers to S400 series turbos within the kit","price":3085.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687919763.webp?v=1787767024","url":"https:\/\/store.motormia.co\/products\/s400-second-gen-turbo-kit","provider":"MOTORMIA","version":"1.0","type":"link"}