# Wehrli 11-15 Chevrolet 6.6L LML Duramax 3in Stainless Down Pipe (V-Band Style)

Replace the restrictive crushed factory down pipe on your 2011-2016 LML Duramax with this full 3" Stainless Steel down pipe. For use with factory turbo or factory style drop in turbo on trucks using a v-band connection style exhaust, NOT the 3 bolt flange style exhaust. - - Replaces the following GM Part Numbers: 12643610, 12638304, 12643214 - - Note: For 3 bolt style down pipe use PN: WCF100705

-   3" Stainless Downpipe (v-band flange)
-   Heat Wrap and clamps
-   No Tuning Require
-   Made in USA

This Part Fits:

Year

Make

Model

Submodel

2015

Chevrolet

Silverado 2500 HD

High Country

2011-2015

Chevrolet

Silverado 2500 HD

LT

2011-2015

Chevrolet

Silverado 2500 HD

LTZ

2011-2015

Chevrolet

Silverado 2500 HD

WT

2015

Chevrolet

Silverado 3500 HD

High Country

2011-2015

Chevrolet

Silverado 3500 HD

LT

2011-2015

Chevrolet

Silverado 3500 HD

LTZ

2011-2015

Chevrolet

Silverado 3500 HD

WT

2015

GMC

Sierra 2500 HD

Base

2011-2015

GMC

Sierra 2500 HD

Denali

2011-2015

GMC

Sierra 2500 HD

SLE

2011-2015

GMC

Sierra 2500 HD

SLT

2011-2014

GMC

Sierra 2500 HD

WT

2015

GMC

Sierra 3500 HD

Base

2011-2015

GMC

Sierra 3500 HD

Denali

2011-2015

GMC

Sierra 3500 HD

SLE

2011-2015

GMC

Sierra 3500 HD

SLT

2011-2014

GMC

Sierra 3500 HD

WT

## Details

- **Price:** 387.61 CAD
- **Vendor:** Wehrli
- **Type:** Downpipes

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 387.61 CAD | In stock |

## Images

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- User 1
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> Source: [Standard Auto Part](https://www.standardautopart.com/products/wehrli-11-15-chevrolet-6-6l-lml-duramax-3in-stainless-down-pipe-v-band-style)
> Updated: 2026-07-03