2017-2026 Duramax 6.6 Stainless Steel Downpipe

Features:

• 3.5" Downpipe
• Full Stainless Steel
• Replaces Restrictive 'Crushed' OE Downpipe and Cat
• Connects to Factory Turbo Outlet
• Works with Any Aftermarket Race Exhaust System OR OEM System
• 4-Bolt Flange

Manufactured by ProPower Diesel in the USA.

IMPORTANT NOTE
In 2017, GMC made a production change in the connection between the catalytic converter and the turbo direct pipe on the L5P. Please ensure you have the newest 4-bolt style flange before ordering.