Diamond Eye K4338S-RP 4 Inch Cat-Back Exhaust System 2003-2007 Ford 6.0L Powerstroke F250/F350

The Diamond Eye K4338S-RP is a complete 4-inch cat-back exhaust system engineered specifically for 2003.5-2007 Ford F250/F350 trucks equipped with the 6.0L Powerstroke diesel engine. This high-performance exhaust system is designed to fit all cab and bed length configurations, providing a direct bolt-on upgrade that significantly improves exhaust flow and engine performance.

Constructed from durable T409 stainless steel, this exhaust system features precision CNC mandrel-bent tubing that eliminates restrictive bends and maintains consistent pipe diameter throughout. The mandrel bending process ensures maximum exhaust flow, reduces backpressure, and allows your Powerstroke engine to breathe more efficiently.

Key Features:

• 4-inch T409 stainless steel construction for exceptional durability and corrosion resistance
• Cat-back single side exit configuration without muffler for aggressive exhaust tone
• CNC mandrel-bent tubing maintains optimal exhaust flow and reduces backpressure
• Fits all 2003.5-2007 Ford F250/F350 cab and bed configurations with 6.0L Powerstroke diesel
• Complete bolt-on installation with all necessary hardware included
• Delivers increased horsepower, improved torque, and enhanced fuel economy
• Lowers exhaust gas temperatures (EGTs) for improved engine longevity
• Produces a deep, aggressive exhaust note without being excessively loud

This system starts at the catalytic converter and routes to a single side exit, eliminating the restrictive factory exhaust components. The straight-through design without a muffler provides maximum flow and an unmistakable diesel exhaust sound that enthusiasts demand. Diamond Eye's precision engineering ensures proper fitment and long-lasting performance under the most demanding conditions.