{"product_id":"bd-diesel-performance-cylinder-head-stage-1-dodge-ram-5-9l-cummins-03-07-w-fire-ring-djpch100202","title":"BD Diesel Performance Cylinder Head (Stage 1) Dodge\/Ram 5.9L Cummins 03-07 (W\/ Fire Ring) - DJPCH100202","description":"\u003cp\u003eThe 2003-2007 5.9 Stage 1 Cummins Performance Head is engineered for enhanced airflow and performance while maintaining the factory intake plenum for easy installation. Featuring 105-pound valve springs and a 5-axis CNC port job, this head increases intake flow from 155 CFM to 220 CFM, improving low-end power, reducing boost pressure, and lowering EGTs. With hardened valve seats, bronze guides, and a precision CNC valve job, this upgrade optimizes fuel efficiency and horsepower while maintaining OEM fitment. Manufactured by D\u0026amp;J Precision Machine, this head is designed for performance-driven builds and daily-driven reliability.\u003c\/p\u003e\u003cul\u003e\u003cli\u003eDirect Bolt-On Replacement - Designed for 2003-2007 Dodge Cummins 5.9L engines\u003c\/li\u003e\u003c\/ul\u003e","brand":"BD Diesel","offers":[{"title":"Default Title","offer_id":47847854964885,"sku":"BKJX-DJPCH100202","price":3964.99,"currency_code":"USD","in_stock":true}],"url":"https:\/\/dieselproof.com\/products\/bd-diesel-performance-cylinder-head-stage-1-dodge-ram-5-9l-cummins-03-07-w-fire-ring-djpch100202","provider":"Diesel Proof","version":"1.0","type":"link"}