Wehrli 11-16 Duramax LML Stainless 2in Up Pipe Kit w/ Gaskets (Passenger Side)
⚠ Call for Availability
Expected ship time: usually within 24–48 hours; some vendor items may take longer.
Shipping policyReturns & core returnsQuestions? Call (503) 235-1947
This product is selected for proper fitment and compatibility with the listed engine application. Our team is available to assist with fitment questions, installation considerations, and supporting components to ensure a smooth install and reliable performance.
Got Questions? Feel free to email us or call us at (503) 235-1947
Replace the lightweight 16G, leak prone, 1 5/8" OEM passenger side up pipe on your 2011-2016 6.6L LML Duramax equipped Chevrolet Silverado or GMC Sierra 2500 / 3500 HD truck with these heavy duty 11 gauge 2" Stainless up pipe kit.
Key Features
- HD Stainless Bellows that will not crack and leak like OEM. Improves exhaust flow which increases turbo spool-up and decreases EGT's.
- INCLUDES GASKETS! - NO Tuning required, bolt on! -Will fit on stock truck no other modifications or upgrades necessary! Replaces the following GM part numbers: 12657012, 12638302, 12644640. Will not work with aftermarket manifolds which alter the exhaust outlet location.
Fitment
Fits 2011-2016 Chevrolet Silverado 2500 HD / Chevrolet Silverado 3500 HD / GMC Sierra 2500 HD / GMC Sierra 3500 HD equipped with the 6.6L LML Duramax Diesel engine.
Product Details
- Brand: Wehrli (WCFab)
- Manufacturer Part Number: WCF100211
- Product Type: Exhaust Pipes & Tubings
Orders typically ship within 24–48 hours of being received, but because of vendor shipping times some orders may take longer. We ship within the United States only (48 contiguous states plus DC).
Shipping Height: 6.0
Shipping Length: 24.0
Shipping Width: 6.0