2004-2007 Cummins 4" Cat-Back Exhaust System w/ Muffler (48778)

Fits

Slash backpressure, increase exhaust flow, improve fuel economy and get more power to your rear wheels with the Banks Power 48778 Monster Sport Exhaust System. The 4" mandrel-bent construction will give your 5.9L Cummins up to 122% more airflow over stock, reduce EGTs, and ultimately give your Dodge more power. 

Banks Part Number: 48778

• 4" Mandrel bent Stainless Steel construction
• Lowers exhaust gas temps
• Improves airflow up to 122 percent
• Cat-back system
• Straight-through muffler
• Easy install
• 5" tip optional
• Fully compatible with factory warranty
• 5-Year Limited Warranty