Wehrli 15.5-16 Chevrolet 6.6L LML Duramax 3in Stainless Down Pipe (3 Bolt Flange)
Why this price?
$348.23 is MSRP, the lowest price Wehrli lets us list it at. Additionally, Pro members get 3% to 35% back on most parts.
Not sure it fits? Read our tips.
Fitment tips
Fitment can come down to more than year, make and model. Sometimes the sub-model decides, so start with the fitment table below.
- Drive type. If your car is all-wheel drive, make sure the part is for all-wheel drive, not rear-wheel drive.
- Engine size. For engine parts, make sure the engine size on the product matches your engine.
- Transmission. Manual and automatic cars often take different parts.
- Body style. Sedan or hatch, two-door or four-door, cab and bed length on trucks.
Manufacturer data can sometimes have imperfections. Still not sure? We are happy to help.
Send us a message and we will confirm the fit.
Couldn't load pickup availability
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
- 3" Stainless Downpipe (3 bolt flange)
- Heat Wrap and clamps
- No Tuning Required
- Made in USA
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 |
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