Replace the restrictive crushed factory down pipe on your 2015.5-2016 LML Duramax with this full 3" Stainless steel down pipe. For use with factory turbo or factory style drop in turbo on trucks with the 3 bolt flange exhaust connection. - - Replaces the following GM Part Numbers: 12674630, 12655717 - - For 2011-2014 style exhaust system with v-band connection use Down pipe PN: WCF100704
This Part Fits:
        
      This Part Fits:
| Year | Make | Model | Submodel | 
|---|---|---|---|
| 2015-2016 | Chevrolet | Silverado 2500 HD | High Country | 
| 2015-2016 | Chevrolet | Silverado 2500 HD | LT | 
| 2015-2016 | Chevrolet | Silverado 2500 HD | LTZ | 
| 2015-2016 | Chevrolet | Silverado 2500 HD | WT | 
| 2015-2016 | Chevrolet | Silverado 3500 HD | High Country | 
| 2015-2016 | Chevrolet | Silverado 3500 HD | LT | 
| 2015-2016 | Chevrolet | Silverado 3500 HD | LTZ | 
| 2015-2016 | Chevrolet | Silverado 3500 HD | WT | 
| 2015-2016 | GMC | Sierra 2500 HD | Base | 
| 2015-2016 | GMC | Sierra 2500 HD | Denali | 
| 2015-2016 | GMC | Sierra 2500 HD | SLE | 
| 2015-2016 | GMC | Sierra 2500 HD | SLT | 
| 2015-2016 | GMC | Sierra 3500 HD | Base | 
| 2015-2016 | GMC | Sierra 3500 HD | Denali | 
| 2015-2016 | GMC | Sierra 3500 HD | SLE | 
| 2015-2016 | GMC | Sierra 3500 HD | SLT | 
- CARB:
 - This product is not CARB Legal and not for sale in California
 - Category:
 - Exhaust, Mufflers & Tips>Downpipes
 - Clearance Item:
 - N
 - Core:
 - N
 - Core Price:
 - 0
 - LTL:
 - N
 - MPN:
 - WCF100705
 - Proposition 65:
 - Y