3.5" Downpipe/High Flow | 2017-2023 GM/Chevy Duramax L5P 6.6L

Compatibility:

• 2017-2023 Chevrolet Silverado & GMC Sierra 2500 & 3500HD 6.6L Duramax pickup trucks. Will not fit Cab & Chassis trucks.

Description:

• Material: Stainless Steel，Mirror Polish
• Downpipe:3.5" Stainless Steel Piping
• 20% better flow than the factory pipe
• Completely eliminates the DOC
• High-quality sealing ring to prevent oil leakage
• 46% larger flow area over stock 
• Manufactured from 11 gauge 304 stainless steel 
• 304 stainless steel, internally-sleeved bellows