Upgrade your 2001-2005 Chevrolet/GMC Silverado/Sierra 2500HD/3500HD 6.6L Duramax with the MBRP GMAL413 4" regular cab adaptor pipe. Built from aluminized steel as a direct bolt-on replacement.
⚠ Emissions Note: Cat-back system installs after the catalytic converter and retains all factory emissions equipment.
⚠ CALIFORNIA PROPOSITION 65 WARNING: This product can expose you to chemicals including chromium, nickel, which are known to the State of California to cause cancer and/or reproductive harm. For more information go to www.P65Warnings.ca.gov.
Note: Product images are for reference only and may differ from the actual product.
