Don't sacrifice performance for a quieter ride. Eliminates the stock intake resonator and muffler with a straight through 4-inch constant-diameter piece. Clean up your engine bay with the Banks easy-to-install mandrel-bent constant diameter 4-inch intake resonator delete.
Details:

• Increase the airflow of your Duramax intake system
• Eliminates factory resonator and intake muffler
• 4-inch mandrel-bent constant diameter steel tubing
• Banks silicone couplers
• Stainless steel hose clamps
• Stainless steel logo
• Natural finish
• Easy-to-install