Wehrli Custom Fabrication WCF100567-FB Twin Turbo Kit for Cummins - S400/Stock 2003-2007 5.9L

The Wehrli Custom Fabrication WCF100567-FB is a complete S400/Stock Twin Turbo Kit designed specifically for 2003-2007 Dodge Ram 5.9L Cummins diesel engines. This comprehensive compound turbo system combines the stock turbocharger with a large S400 series turbo to deliver significantly increased airflow and power while maintaining excellent drivability and spool characteristics.

Complete Kit Includes:

• 5-inch intake system with dry air filter
• Outerwears pre-filter cover for enhanced filtration protection
• Stainless steel oil feed and drain lines with all necessary fittings
• 4-inch turbo downpipe for improved exhaust flow
• 3-inch turbo hot side crossover pipe
• 3-inch cold charge pipe between turbos

Premium Construction:

• Fully TIG welded components for maximum strength and durability
• High-quality stainless steel and aluminum construction
• Precision CNC-machined fittings and components
• Designed and manufactured in the USA at WCFab's facility

This twin turbo configuration is ideal for enthusiasts seeking serious performance gains for towing, racing, or daily driving applications. The compound setup uses the stock turbo as the low-pressure stage and the S400 as the high-pressure stage, creating a highly efficient and powerful boost system. WCFab's reputation for precision fabrication and fitment ensures this kit installs properly and performs reliably under demanding conditions.

Note: This is a built-to-order item with a 10-15 business day lead time. Professional installation and tuning are recommended for optimal performance and reliability.