# Wehrli 11-16 Duramax LML Passenger Side 3.5 in. Intercooler Pipe - WCFab Grey

The 3.5" High Flow Passenger Side Intercooler Pipe for 2011-2016 LML Duramax replaces the factory plastic two-piece pipe with a high flow, 14 ga. aluminum one piece 3.5" pipe. This part uses upgraded silicone boots to withstand higher boost pressures than the factory components to increase reliability and eliminate blown factory boots and horsepower-robbing boost leaks. Finished in your choice of custom powder colors. This pipe is compatible with stock trucks requiring no additional modifications, upgrades, or tuning for installation. - - Improves airflow between the turbo and engine for improved efficiency, throttle response, and turbo spool up. Eliminates weak points in the factory design that can lead to boost leaks or complete failures in hard-working and high-performance applications. - - Installs easily with basic hand tools. - - Pairs best with emissions-compliant tuning and drop-in turbochargers for optimum performance gains. - - Replaces the following GM Part Numbers: 22737494, 20930188, 23421455, 84094727

-   OEM Clip Ring Design replaced by high quality silicone boot and stainless steel t-bolt clamps for improved sealing and ability to hold higher boost pressures without leaking
-   Incorporated threaded bung to reinstall OEM Intake Temperature Sensor
-   Will fit on stock truck no other modifications or upgrades necessary!
-   High Quality Silicone Boots & Stainless Steel T-Bolt Clamps
-   Compatible with OEM Y-Bridge/cross over pipe
-   3.5 in. Cold Side Intercooler Pipe
-   Durable Custom Powder Coat Finish
-   23% Gain in Air Flow Over Stock
-   NO Tuning required, bolt on!
-   14g aluminum construction
-   Made in USA

This Part Fits:

Year

Make

Model

Submodel

2015-2016

Chevrolet

Silverado 2500 HD

High Country

2011-2016

Chevrolet

Silverado 2500 HD

LT

2011-2016

Chevrolet

Silverado 2500 HD

LTZ

2011-2016

Chevrolet

Silverado 2500 HD

WT

2015-2016

Chevrolet

Silverado 3500 HD

High Country

2011-2016

Chevrolet

Silverado 3500 HD

LT

2011-2016

Chevrolet

Silverado 3500 HD

LTZ

2011-2016

Chevrolet

Silverado 3500 HD

WT

2015-2016

GMC

Sierra 2500 HD

Base

2011-2016

GMC

Sierra 2500 HD

Denali

2011-2016

GMC

Sierra 2500 HD

SLE

2011-2016

GMC

Sierra 2500 HD

SLT

2011-2014

GMC

Sierra 2500 HD

WT

2015-2016

GMC

Sierra 3500 HD

Base

2011-2016

GMC

Sierra 3500 HD

Denali

2011-2016

GMC

Sierra 3500 HD

SLE

2011-2016

GMC

Sierra 3500 HD

SLT

2011-2014

GMC

Sierra 3500 HD

WT

## Details

- **Price:** 531.52 CAD
- **Vendor:** Wehrli
- **Type:** Intercooler Pipe Kits

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 531.52 CAD | In stock |

## Images

- Photo - Primary
- User 1
- User 2
- User 3
- User 1
- Logo Image

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/wehrli-11-16-duramax-lml-passenger-side-3-5-in-intercooler-pipe-wcfab-grey)
> Updated: 2026-07-03