{"product_id":"bd-diesel-performance-cylinder-head-stage-1-dodge-ram-5-9l-cummins-03-07-w-o-fire-ring","title":"BD Diesel Performance Cylinder Head (Stage 1) Dodge\/Ram 5.9L Cummins 03-07 (W\/O Fire Ring)","description":"\u003cp\u003eThe 2003-2007 5.9 Stage 1 Cummins Performance Cylinder Head is designed to deliver increased airflow and durability without the added cost and complexity of an aftermarket intake. Featuring 105-pound valve springs and a 5-axis CNC port job, this head significantly boosts intake flow from 155 CFM to 220 CFM, improving low-end performance, reducing boost pressure, and lowering EGTs. Built on the foundation of the HP Reman Head, it includes new bronze guides, oversized hardened seats, and a high-performance CNC valve job for enhanced longevity and efficiency. Manufactured by D\u0026amp;J Precision Machine, this cylinder head is a proven upgrade for both stock and performance-driven Cummins builds.\u003c\/p\u003e","brand":"BD Diesel","offers":[{"title":"Default Title","offer_id":47849632104597,"sku":"BKJX-DJPCH100026","price":3149.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0593\/0585\/3077\/files\/DJPCH100026_1024px.jpg?v=1787871884","url":"https:\/\/dieselproof.com\/products\/bd-diesel-performance-cylinder-head-stage-1-dodge-ram-5-9l-cummins-03-07-w-o-fire-ring","provider":"Diesel Proof","version":"1.0","type":"link"}