Description
WCFab 2017-2026 L5P Duramax 3.5" Down Pipe WCF100129
Fits: 2017-2026 Chevy/GMC 2500HD/3500HD L5P Duramax
Replace the restrictive crushed factory downpipe / front pipe on your 2017-2026 L5P 6.6L Duramax equipped Chevrolet Silverado or GMC Sierra 2500 / 3500 HD truck with this 3.5" Down Pipe for improved exhaust flow. Fabricated steel construction. Black High Temp Ceramic Coating with Heat wrap for thermal protection. Includes bungs for sensors. NO tuning required.
***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
WCFab piping kits and emissions-compliant tuning recommended for optimum performance gains.
Lead time (per manufacturer): In Stock. Ships in 3-5 business days.
Wehrli Custom Fabrication (WCFab) — USA made. Part number: WCF100129.
California and Emissions Notice
This product is not legal for sale or use in California, or on any pollution-controlled motor vehicle where state or local law prohibits it. It does not have a California Air Resources Board (CARB) Executive Order. You are responsible for checking and following the emissions laws in your state before you buy and install it. Questions? Call us at 479-799-3953.
