4" Cat & DPF Race Pipes With Muffler | 2017-2023 GM 2500/3500 6.6L DURAMAX L5P-431031

Constructed out of 16 gauge aluminized steel or T409 Stainless, this exhaust system is designed to simplify installation with included clamps, preweld contour bends and improved flanges. Enjoy a noticeable boost in performance, lowered EGTs and amplified air flow with this Mel's system. For powerhouse performance, Mel's delivers - horsepower you can hear!

Features:

• Ease of installation
• Contour Bent Hangers
• TorcTite® Clamps
• OEM Style 4 Bolt Flange
• No Bungs
• Fits Cab/Box Configurations: EC-CC/SB-LB-Dually

* IMPORTANT NOTE: These kits will only fit models equipped with the OEM style 4-bolt flange off the turbo direct pipe! 

 These parts are for use on non-registered race vehicles on closed-course competition events *Installing or using this part on any emission-controlled vehicle ("street" or "off-road") may violate federal and/or state emissions laws and regulations. *Not available to ship to the United States

431031