2017-2026 Duramax 3.5" Downpipe

WC FAB kit

to suit CHEV / GMC 2500 HD Diesel L5P

•  3.5inch Downpipe
  
•  Ceramic Coated
  
•  Heat Wrap Pre-installed
  
• NO TUNING REQUIRED
  

Replace the restrictive crushed factory downpipe on your 2017-2025 L5P Duramax with this 3.5" Downpipe for improved exhaust flow. Black Ceramic Coated and heat-wrapped for thermal protection. Downpipe includes bungs for sensors and NO tuning is required to use this downpipe.

• WCFab piping kits and emissions-compliant tuning are recommended for optimum performance gains.
• Connects to the DOC (Diesel Oxidation Catalyst) outlet flange and mates with OEM exhaust system front pipe with the 4 bolt style flange connection.
• Replaces the following GM Part Numbers: 12671086

All Products sold are intended for off-road, competition, or approved road-use applications only, depending on the specific product supplied. It is the Customer’s responsibility to ensure the Product complies with all local laws, regulations, and vehicle requirements before installation and use.

To the maximum extent permitted by law, Ec Offroad accepts no liability for any engine, turbo, drivetrain, ECU, or mechanical damage, vehicle downtime, or related losses arising from the installation or use of the exhaust system. The customer acknowledges that vehicle modifications may affect performance and reliability and accepts all risks associated with installation and use of the product.

This product is not endorsed by, directly affiliated with Chev. All product and company names are the registered trademarks of their original owners. The use of any trade name or trademark is for compatibility and reference purposes only and does not imply any association with the trademark holder of their product brand.

 *for stock levels, please call our warehouse on 1300 504 060