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:
| 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 |
